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Proportions

Solve for below:
y
16
=
  
16
256


Answer
If 2 proportions are equal to each other, then we can cross multiply to get:
Numerator 1
Denominator 1
=
  
Numerator 2
Denominator 2

Numerator 1 * Denominator 2 = Denominator 1 * Numerator 2

Solving for Numerator 1 we get:

Numerator 1  =  Denominator 1 * Numerator 2
  Denominator 2

Evaluating and simplfying using your input values solving for y, we get:

y  =  y * 16
  256

y  =  256
  256

y = 1