Finding the Fourth Proportional to 115,751,028.68, 159,735,789.06 and 63,540,952.84
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Solution
The fourth proportional to 115,751,028.68, 159,735,789.06 and 63,540,952.84 is: 87,686,168.80
Step by Step Solution
- Step 1: Write the proportion equation
115,751,028.68 : 159,735,789.06 = 63,540,952.84 : x - Step 2: Convert to fraction form
115,751,028.68/159,735,789.06 = 63,540,952.84/x - Step 3: Cross multiply
115,751,028.68x = 159,735,789.06 × 63,540,952.84 - Step 4: Simplify right side
115,751,028.68x = 10,149,764,239,521,648 - Step 5: Solve for x
x = 10,149,764,239,521,648/115,751,028.68 - Step 6: Final answer
x = 87,686,168.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.