Home / 9,279,138.20-12,804,874.30-5,149,349.56

Finding the Fourth Proportional to 9,279,138.20, 12,804,874.30 and 5,149,349.56

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Solution

The fourth proportional to 9,279,138.20, 12,804,874.30 and 5,149,349.56 is: 7,105,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,279,138.20 : 12,804,874.30 = 5,149,349.56 : x
  2. Step 2: Convert to fraction form
    9,279,138.20/12,804,874.30 = 5,149,349.56/x
  3. Step 3: Cross multiply
    9,279,138.20x = 12,804,874.30 × 5,149,349.56
  4. Step 4: Simplify right side
    9,279,138.20x = 65,936,773,842,560.30
  5. Step 5: Solve for x
    x = 65,936,773,842,560.30/9,279,138.20
  6. Step 6: Final answer
    x = 7,105,915.70

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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.