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Finding the Third Proportional to 71,645,943 and 155,455,980

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Solution

The third proportional to 71,645,943 and 155,455,980 is: 337,305,375.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,645,943 : 155,455,980 = 155,455,980 : x
  2. Step 2: Convert to fraction form
    71,645,943/155,455,980 = 155,455,980/x
  3. Step 3: Cross multiply
    71,645,943x = 155,455,980 × 155,455,980
  4. Step 4: Simplify right side
    71,645,943x = 24,166,561,717,760,400
  5. Step 5: Solve for x
    x = 24,166,561,717,760,400/71,645,943
  6. Step 6: Final answer
    x = 337,305,375.65

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.