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Finding the Third Proportional to 72,195,774 and 155,900,352

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Solution

The third proportional to 72,195,774 and 155,900,352 is: 336,652,942.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,195,774 : 155,900,352 = 155,900,352 : x
  2. Step 2: Convert to fraction form
    72,195,774/155,900,352 = 155,900,352/x
  3. Step 3: Cross multiply
    72,195,774x = 155,900,352 × 155,900,352
  4. Step 4: Simplify right side
    72,195,774x = 24,304,919,753,723,904
  5. Step 5: Solve for x
    x = 24,304,919,753,723,904/72,195,774
  6. Step 6: Final answer
    x = 336,652,942.51

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.