7000000000 is what percent of 4.0E+15 - 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 4.0E+15 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 100% equals 4.0E+15, so we can write it down as 100%=4.0E+15.
4. We know, that x% equals 7000000000 of the output value, so we can write it down as x%=7000000000.
5. Now we have two simple equations:
1) 100%=4.0E+15
2) x%=7000000000
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:
100%/x%=4.0E+15/7000000000
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 7000000000 is what percent of 4.0E+15

100%/x%=4.0E+15/7000000000
(100/x)*x=(4.0E+15/7000000000)*x       - we multiply both sides of the equation by x
100=571428.57142857*x       - we divide both sides of the equation by (571428.57142857) to get x
100/571428.57142857=x
0.000175=x
x=0.000175

now we have:
7000000000 is 0.000175% of 4.0E+15