Home / 71,351,728.38-107,027,553.69-20,234,170.62

Finding the Fourth Proportional to 71,351,728.38, 107,027,553.69 and 20,234,170.62

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Solution

The fourth proportional to 71,351,728.38, 107,027,553.69 and 20,234,170.62 is: 30,351,244.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,351,728.38 : 107,027,553.69 = 20,234,170.62 : x
  2. Step 2: Convert to fraction form
    71,351,728.38/107,027,553.69 = 20,234,170.62/x
  3. Step 3: Cross multiply
    71,351,728.38x = 107,027,553.69 × 20,234,170.62
  4. Step 4: Simplify right side
    71,351,728.38x = 2,165,613,782,404,670.75
  5. Step 5: Solve for x
    x = 2,165,613,782,404,670.75/71,351,728.38
  6. Step 6: Final answer
    x = 30,351,244.90

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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.