Home / 20,780,767.92-28,678,732.92-11,614,142.64

Finding the Fourth Proportional to 20,780,767.92, 28,678,732.92 and 11,614,142.64

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Solution

The fourth proportional to 20,780,767.92, 28,678,732.92 and 11,614,142.64 is: 16,028,228.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,780,767.92 : 28,678,732.92 = 11,614,142.64 : x
  2. Step 2: Convert to fraction form
    20,780,767.92/28,678,732.92 = 11,614,142.64/x
  3. Step 3: Cross multiply
    20,780,767.92x = 28,678,732.92 × 11,614,142.64
  4. Step 4: Simplify right side
    20,780,767.92x = 333,078,894,867,343.75
  5. Step 5: Solve for x
    x = 333,078,894,867,343.75/20,780,767.92
  6. Step 6: Final answer
    x = 16,028,228.42

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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.