Home / 28,459,081.38-39,273,545.01-15,406,339.86

Finding the Fourth Proportional to 28,459,081.38, 39,273,545.01 and 15,406,339.86

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Solution

The fourth proportional to 28,459,081.38, 39,273,545.01 and 15,406,339.86 is: 21,260,755.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459,081.38 : 39,273,545.01 = 15,406,339.86 : x
  2. Step 2: Convert to fraction form
    28,459,081.38/39,273,545.01 = 15,406,339.86/x
  3. Step 3: Cross multiply
    28,459,081.38x = 39,273,545.01 × 15,406,339.86
  4. Step 4: Simplify right side
    28,459,081.38x = 605,061,581,931,067
  5. Step 5: Solve for x
    x = 605,061,581,931,067/28,459,081.38
  6. Step 6: Final answer
    x = 21,260,755.88

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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.