Home / 20,663,775.38-31,002,638.52-9,147,654.12

Finding the Fourth Proportional to 20,663,775.38, 31,002,638.52 and 9,147,654.12

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Solution

The fourth proportional to 20,663,775.38, 31,002,638.52 and 9,147,654.12 is: 13,724,569.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,663,775.38 : 31,002,638.52 = 9,147,654.12 : x
  2. Step 2: Convert to fraction form
    20,663,775.38/31,002,638.52 = 9,147,654.12/x
  3. Step 3: Cross multiply
    20,663,775.38x = 31,002,638.52 × 9,147,654.12
  4. Step 4: Simplify right side
    20,663,775.38x = 283,601,413,988,348.69
  5. Step 5: Solve for x
    x = 283,601,413,988,348.69/20,663,775.38
  6. Step 6: Final answer
    x = 13,724,569.14

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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.