Home / 20,337,872.68-28,059,433.86-11,516,121.64

Finding the Fourth Proportional to 20,337,872.68, 28,059,433.86 and 11,516,121.64

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Solution

The fourth proportional to 20,337,872.68, 28,059,433.86 and 11,516,121.64 is: 15,888,380.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337,872.68 : 28,059,433.86 = 11,516,121.64 : x
  2. Step 2: Convert to fraction form
    20,337,872.68/28,059,433.86 = 11,516,121.64/x
  3. Step 3: Cross multiply
    20,337,872.68x = 28,059,433.86 × 11,516,121.64
  4. Step 4: Simplify right side
    20,337,872.68x = 323,135,853,481,294.75
  5. Step 5: Solve for x
    x = 323,135,853,481,294.75/20,337,872.68
  6. Step 6: Final answer
    x = 15,888,380.19

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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.