To solve for \( w \) in the equation \(\frac{w}{12.8} = 4\), we need to isolate \( w \). This can be done by multiplying both sides of the equation by 12.8.
Step 1: Given Equation
We start with the given equation:
\[
\frac{w}{12.8} = 4
\]
Step 2: Isolate \( w \)
To isolate \( w \), we multiply both sides of the equation by 12.8:
\[
w = 4 \times 12.8
\]
Step 3: Perform the Multiplication
Calculate the right-hand side:
\[
w = 4 \times 12.8 = 51.2
\]