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Finding the Third Proportional to 71,645,981 and 155,456,055

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Solution

The third proportional to 71,645,981 and 155,456,055 is: 337,305,522.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,645,981 : 155,456,055 = 155,456,055 : x
  2. Step 2: Convert to fraction form
    71,645,981/155,456,055 = 155,456,055/x
  3. Step 3: Cross multiply
    71,645,981x = 155,456,055 × 155,456,055
  4. Step 4: Simplify right side
    71,645,981x = 24,166,585,036,163,024
  5. Step 5: Solve for x
    x = 24,166,585,036,163,024/71,645,981
  6. Step 6: Final answer
    x = 337,305,522.22

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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.