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Finding the Third Proportional to 129,344,040 and 275,620,320

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Solution

The third proportional to 129,344,040 and 275,620,320 is: 587,321,694.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,344,040 : 275,620,320 = 275,620,320 : x
  2. Step 2: Convert to fraction form
    129,344,040/275,620,320 = 275,620,320/x
  3. Step 3: Cross multiply
    129,344,040x = 275,620,320 × 275,620,320
  4. Step 4: Simplify right side
    129,344,040x = 75,966,560,796,902,400
  5. Step 5: Solve for x
    x = 75,966,560,796,902,400/129,344,040
  6. Step 6: Final answer
    x = 587,321,694.89

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.