What is 9.0E+15 percent of 1.0E-7 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 1.0E-7 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 1.0E-7 is 100%, so we can write it down as 1.0E-7=100%.
4. We know, that x is 9.0E+15% of the output value, so we can write it down as x=9.0E+15%.
5. Now we have two simple equations:
1) 1.0E-7=100%
2) x=9.0E+15%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
1.0E-7/x=100%/9.0E+15%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 9.0E+15% of 1.0E-7

1.0E-7/x=100/9.0E+15
(1.0E-7/x)*x=(100/9.0E+15)*x       - we multiply both sides of the equation by x
1.0E-7=1.1111111111111E-14*x       - we divide both sides of the equation by (1.1111111111111E-14) to get x
1.0E-7/1.1111111111111E-14=x
9000000=x
x=9000000

now we have:
9.0E+15% of 1.0E-7=9000000