0.66666666666667 is what percent of 2.1212121212 - 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 2.1212121212 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 2.1212121212, so we can write it down as 100%=2.1212121212.
4. We know, that x% equals 0.66666666666667 of the output value, so we can write it down as x%=0.66666666666667.
5. Now we have two simple equations:
1) 100%=2.1212121212
2) x%=0.66666666666667
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%=2.1212121212/0.66666666666667
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 0.66666666666667 is what percent of 2.1212121212

100%/x%=2.1212121212/0.66666666666667
(100/x)*x=(2.1212121212/0.66666666666667)*x       - we multiply both sides of the equation by x
100=3.1818181818*x       - we divide both sides of the equation by (3.1818181818) to get x
100/3.1818181818=x
31.428571428751=x
x=31.428571428751

now we have:
0.66666666666667 is 31.428571428751% of 2.1212121212