Home / 12,129,176.10-18,193,764.15-4,937,007.90

Finding the Fourth Proportional to 12,129,176.10, 18,193,764.15 and 4,937,007.90

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Solution

The fourth proportional to 12,129,176.10, 18,193,764.15 and 4,937,007.90 is: 7,405,511.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129,176.10 : 18,193,764.15 = 4,937,007.90 : x
  2. Step 2: Convert to fraction form
    12,129,176.10/18,193,764.15 = 4,937,007.90/x
  3. Step 3: Cross multiply
    12,129,176.10x = 18,193,764.15 × 4,937,007.90
  4. Step 4: Simplify right side
    12,129,176.10x = 89,822,757,339,286.78
  5. Step 5: Solve for x
    x = 89,822,757,339,286.78/12,129,176.10
  6. Step 6: Final answer
    x = 7,405,511.85

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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.