Home / 82,376,704.38-123,757,999.20-77,723,200.32

Finding the Fourth Proportional to 82,376,704.38, 123,757,999.20 and 77,723,200.32

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Solution

The fourth proportional to 82,376,704.38, 123,757,999.20 and 77,723,200.32 is: 116,766,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,376,704.38 : 123,757,999.20 = 77,723,200.32 : x
  2. Step 2: Convert to fraction form
    82,376,704.38/123,757,999.20 = 77,723,200.32/x
  3. Step 3: Cross multiply
    82,376,704.38x = 123,757,999.20 × 77,723,200.32
  4. Step 4: Simplify right side
    82,376,704.38x = 9,618,867,763,024,000
  5. Step 5: Solve for x
    x = 9,618,867,763,024,000/82,376,704.38
  6. Step 6: Final answer
    x = 116,766,843.68

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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.