Home / 12,226,640.72-18,338,836.59-4,138,691.90

Finding the Fourth Proportional to 12,226,640.72, 18,338,836.59 and 4,138,691.90

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Solution

The fourth proportional to 12,226,640.72, 18,338,836.59 and 4,138,691.90 is: 6,207,657.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226,640.72 : 18,338,836.59 = 4,138,691.90 : x
  2. Step 2: Convert to fraction form
    12,226,640.72/18,338,836.59 = 4,138,691.90/x
  3. Step 3: Cross multiply
    12,226,640.72x = 18,338,836.59 × 4,138,691.90
  4. Step 4: Simplify right side
    12,226,640.72x = 75,898,794,358,762.44
  5. Step 5: Solve for x
    x = 75,898,794,358,762.44/12,226,640.72
  6. Step 6: Final answer
    x = 6,207,657.21

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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.