Home / 20,156,767.20-27,815,140.08-11,453,731.92

Finding the Fourth Proportional to 20,156,767.20, 27,815,140.08 and 11,453,731.92

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Solution

The fourth proportional to 20,156,767.20, 27,815,140.08 and 11,453,731.92 is: 15,805,468.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156,767.20 : 27,815,140.08 = 11,453,731.92 : x
  2. Step 2: Convert to fraction form
    20,156,767.20/27,815,140.08 = 11,453,731.92/x
  3. Step 3: Cross multiply
    20,156,767.20x = 27,815,140.08 × 11,453,731.92
  4. Step 4: Simplify right side
    20,156,767.20x = 318,587,157,793,567.31
  5. Step 5: Solve for x
    x = 318,587,157,793,567.31/20,156,767.20
  6. Step 6: Final answer
    x = 15,805,468.93

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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.