Home / 442,858,471.20-664,284,207.60-115,333,351.20

Finding the Fourth Proportional to 442,858,471.20, 664,284,207.60 and 115,333,351.20

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Solution

The fourth proportional to 442,858,471.20, 664,284,207.60 and 115,333,351.20 is: 172,999,115.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,858,471.20 : 664,284,207.60 = 115,333,351.20 : x
  2. Step 2: Convert to fraction form
    442,858,471.20/664,284,207.60 = 115,333,351.20/x
  3. Step 3: Cross multiply
    442,858,471.20x = 664,284,207.60 × 115,333,351.20
  4. Step 4: Simplify right side
    442,858,471.20x = 76,614,123,811,744,512
  5. Step 5: Solve for x
    x = 76,614,123,811,744,512/442,858,471.20
  6. Step 6: Final answer
    x = 172,999,115.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.