( 6o 9 ) 
Years. 
Prefent va- 
Years. 
Prefenc va- 
Years. 
Present va- 
lue of I /, 
lue of 1 /. 
lue of 1 /. 
i 
0.9424 
19 
27 
0,1 ic8 
2 
0,8900 
20 
0,2118 
l8 
0,1092 
3 
0,8396 
21 
0^2941 
39 
0,1031 
4 
0,7921 
22 
0,277 * 
40 
0,0972 
S 
°>7473 
*3 
0,2618 
45 
0,0726 
6 
0,70 c Q 
24 
0,2470 
$f> 
°^W3 
7 
0,6650 
25 
0.22 So 
3 J J v 
0,0406 
8 
0^6274 
26 
0,2198 
60 
0,0303 
9 
0,5-919 
2 7 
0,2074 
65 
0,0227 
IO 
28 
o,I 9 e6 
70 
0,0169 
il 
0^268 
0,184 c 
0,0x26 
12 
30 
0,1741 
80 
0,0094 
i 
0,4688 
3 1 
0,1642 
0,0071 
! i 4 
0,4422 
32 
0,1 ceo 
90 
0,00x3 
! 4 
0,4173 
3? 
0,1462 
0,0039 
16 
0,3936 
34 
0,1379 
100 
0,002p 
0,3714 
■ ?f 
0,1301 
18 
10,3^03 
36 
0,1217 
It were needleS to adverrife, that the great trouble of 
working fo many Proportions will be very much alleviated by 
ufing Logarithms ; and that inftead of ufing N nv —Yyv for 
the Second Term of the Proportion in finding the value of 
Three Lives, it may fuffice to ufe only Ty v, and then de- 
ducting the Fourth Term fo found out of 'the Third, the 
Remainder ftiall be the prefent value fought ; or all thefe 
Fourth Terms being added together, and deducted out of the 
value of the certain Annuity for fo many Years, will leave 
the value of the contingent Annuity - upon the Chance of 
Mortality of all thofe three Lives. For Example ; Let 
there be Three Lives of 10, 30, and 40 years of Age propo- 
fed, and the Proportions will be thus : 
As 661 in 5-31 in 445 or is 6l 9°99$> or Nn v 
to 8 "ib 8 in 9, or 576, or Ty v for the firft >ear, fo o, 9434^0 0,00000348 
to i§ in 16 in i8,or 4320, for the fecond year, fo.o, 8900. 100,00002462 
to 21 in 34 in 28, or 141 12 for the third year, fo o, 8396. to 0,00008128 
to 27 id 52 in 38, for the fourth year, fo o, 7921. to 0,0001^550 
to 33 in 41 in 48, for the fifth year , fo o, 7473. to 0,00031071 
to 39 in $0 in $8, for the fixth year, fo o, 7050 to 0,00051051 
And 
