Home / 12,117,327.20-18,166,951.20-7,324,006.40

Finding the Fourth Proportional to 12,117,327.20, 18,166,951.20 and 7,324,006.40

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Solution

The fourth proportional to 12,117,327.20, 18,166,951.20 and 7,324,006.40 is: 10,980,545.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117,327.20 : 18,166,951.20 = 7,324,006.40 : x
  2. Step 2: Convert to fraction form
    12,117,327.20/18,166,951.20 = 7,324,006.40/x
  3. Step 3: Cross multiply
    12,117,327.20x = 18,166,951.20 × 7,324,006.40
  4. Step 4: Simplify right side
    12,117,327.20x = 133,054,866,857,287.69
  5. Step 5: Solve for x
    x = 133,054,866,857,287.69/12,117,327.20
  6. Step 6: Final answer
    x = 10,980,545.85

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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.