Home / 12,257,432.70-18,358,155.45-7,218,584.70

Finding the Fourth Proportional to 12,257,432.70, 18,358,155.45 and 7,218,584.70

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Solution

The fourth proportional to 12,257,432.70, 18,358,155.45 and 7,218,584.70 is: 10,811,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257,432.70 : 18,358,155.45 = 7,218,584.70 : x
  2. Step 2: Convert to fraction form
    12,257,432.70/18,358,155.45 = 7,218,584.70/x
  3. Step 3: Cross multiply
    12,257,432.70x = 18,358,155.45 × 7,218,584.70
  4. Step 4: Simplify right side
    12,257,432.70x = 132,519,900,051,591.61
  5. Step 5: Solve for x
    x = 132,519,900,051,591.61/12,257,432.70
  6. Step 6: Final answer
    x = 10,811,391.20

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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.