520 is what percent of 4 - 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 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, so we can write it down as 100%=4.
4. We know, that x% equals 520 of the output value, so we can write it down as x%=520.
5. Now we have two simple equations:
1) 100%=4
2) x%=520
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%=4/520
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 520 is what percent of 4

100%/x%=4/520
(100/x)*x=(4/520)*x       - we multiply both sides of the equation by x
100=0.0076923076923077*x       - we divide both sides of the equation by (0.0076923076923077) to get x
100/0.0076923076923077=x
13000=x
x=13000

now we have:
520 is 13000% of 4