Home / 21,193,132.62-31,747,134.78-9,662,738.96

Finding the Fourth Proportional to 21,193,132.62, 31,747,134.78 and 9,662,738.96

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Solution

The fourth proportional to 21,193,132.62, 31,747,134.78 and 9,662,738.96 is: 14,474,701.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193,132.62 : 31,747,134.78 = 9,662,738.96 : x
  2. Step 2: Convert to fraction form
    21,193,132.62/31,747,134.78 = 9,662,738.96/x
  3. Step 3: Cross multiply
    21,193,132.62x = 31,747,134.78 × 9,662,738.96
  4. Step 4: Simplify right side
    21,193,132.62x = 306,764,276,058,763.38
  5. Step 5: Solve for x
    x = 306,764,276,058,763.38/21,193,132.62
  6. Step 6: Final answer
    x = 14,474,701.86

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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.