78 is what percent of 2603 - 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 2603 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 2603, so we can write it down as 100%=2603.
4. We know, that x% equals 78 of the output value, so we can write it down as x%=78.
5. Now we have two simple equations:
1) 100%=2603
2) x%=78
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%=2603/78
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 78 is what percent of 2603

100%/x%=2603/78
(100/x)*x=(2603/78)*x       - we multiply both sides of the equation by x
100=33.371794871795*x       - we divide both sides of the equation by (33.371794871795) to get x
100/33.371794871795=x
2.9965424510181=x
x=2.9965424510181

now we have:
78 is 2.9965424510181% of 2603