Home / 20,732,472.60-31,098,708.90-9,947,938.20

Finding the Fourth Proportional to 20,732,472.60, 31,098,708.90 and 9,947,938.20

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Solution

The fourth proportional to 20,732,472.60, 31,098,708.90 and 9,947,938.20 is: 14,921,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732,472.60 : 31,098,708.90 = 9,947,938.20 : x
  2. Step 2: Convert to fraction form
    20,732,472.60/31,098,708.90 = 9,947,938.20/x
  3. Step 3: Cross multiply
    20,732,472.60x = 31,098,708.90 × 9,947,938.20
  4. Step 4: Simplify right side
    20,732,472.60x = 309,368,034,236,989.94
  5. Step 5: Solve for x
    x = 309,368,034,236,989.94/20,732,472.60
  6. Step 6: Final answer
    x = 14,921,907.30

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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.