Answer:
inflation rate 5%
Explanation:
given data
principal = $9,905,971.09
mature amount = $1000000
time = 47 year ( 2014 - 1967 )
to find out
inflation rate
solution
we apply here future value formula that is
FV = principal × [tex](1+rate)^{time}[/tex] ..................................1
put here value we get rate
$1000000 = $9,905,971.09 × [tex](1+rate)^{47}[/tex]
solve it we get rate
rate = 5%