12345678 is what percent of 1.2345678987654E+16 - 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 1.2345678987654E+16 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 1.2345678987654E+16, so we can write it down as 100%=1.2345678987654E+16.
4. We know, that x% equals 12345678 of the output value, so we can write it down as x%=12345678.
5. Now we have two simple equations:
1) 100%=1.2345678987654E+16
2) x%=12345678
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%=1.2345678987654E+16/12345678
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 12345678 is what percent of 1.2345678987654E+16

100%/x%=1.2345678987654E+16/12345678
(100/x)*x=(1.2345678987654E+16/12345678)*x       - we multiply both sides of the equation by x
100=1000000080*x       - we divide both sides of the equation by (1000000080) to get x
100/1000000080=x
9.9999992E-8=x
x=9.9999992E-8

now we have:
12345678 is 9.9999992E-8% of 1.2345678987654E+16