Home / 8,278,861.38-12,420,358.79-2,887,589.27

Finding the Fourth Proportional to 8,278,861.38, 12,420,358.79 and 2,887,589.27

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Solution

The fourth proportional to 8,278,861.38, 12,420,358.79 and 2,887,589.27 is: 4,332,104.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,278,861.38 : 12,420,358.79 = 2,887,589.27 : x
  2. Step 2: Convert to fraction form
    8,278,861.38/12,420,358.79 = 2,887,589.27/x
  3. Step 3: Cross multiply
    8,278,861.38x = 12,420,358.79 × 2,887,589.27
  4. Step 4: Simplify right side
    8,278,861.38x = 35,864,894,695,014.45
  5. Step 5: Solve for x
    x = 35,864,894,695,014.45/8,278,861.38
  6. Step 6: Final answer
    x = 4,332,104.75

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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.