Home / 21,193,132.82-31,747,135.05-9,662,739.15

Finding the Fourth Proportional to 21,193,132.82, 31,747,135.05 and 9,662,739.15

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Solution

The fourth proportional to 21,193,132.82, 31,747,135.05 and 9,662,739.15 is: 14,474,702.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,193,132.82 : 31,747,135.05 = 9,662,739.15 : x
  2. Step 2: Convert to fraction form
    21,193,132.82/31,747,135.05 = 9,662,739.15/x
  3. Step 3: Cross multiply
    21,193,132.82x = 31,747,135.05 × 9,662,739.15
  4. Step 4: Simplify right side
    21,193,132.82x = 306,764,284,747,972.25
  5. Step 5: Solve for x
    x = 306,764,284,747,972.25/21,193,132.82
  6. Step 6: Final answer
    x = 14,474,702.13

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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.