Question

how many times larger is 9 × 10^9 than 3 x 10^-4
$9 \times 10 ^{?9}$
$3 \times {10}^{ - 4}$

Answer 1

   9 × 10^9
---------------- = 3 x 10^13
  3 x 10^-4 

answer
3 x 10^13 times larger