Home / 20,278,007.52-30,377,815.20-11,275,265.76

Finding the Fourth Proportional to 20,278,007.52, 30,377,815.20 and 11,275,265.76

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Solution

The fourth proportional to 20,278,007.52, 30,377,815.20 and 11,275,265.76 is: 16,891,104.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278,007.52 : 30,377,815.20 = 11,275,265.76 : x
  2. Step 2: Convert to fraction form
    20,278,007.52/30,377,815.20 = 11,275,265.76/x
  3. Step 3: Cross multiply
    20,278,007.52x = 30,377,815.20 × 11,275,265.76
  4. Step 4: Simplify right side
    20,278,007.52x = 342,517,939,588,167.56
  5. Step 5: Solve for x
    x = 342,517,939,588,167.56/20,278,007.52
  6. Step 6: Final answer
    x = 16,891,104.28

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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.