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Finding the Third Proportional to 38,135,272 and 81,259,640

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Solution

The third proportional to 38,135,272 and 81,259,640 is: 173,150,176.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,135,272 : 81,259,640 = 81,259,640 : x
  2. Step 2: Convert to fraction form
    38,135,272/81,259,640 = 81,259,640/x
  3. Step 3: Cross multiply
    38,135,272x = 81,259,640 × 81,259,640
  4. Step 4: Simplify right side
    38,135,272x = 6,603,129,092,929,600
  5. Step 5: Solve for x
    x = 6,603,129,092,929,600/38,135,272
  6. Step 6: Final answer
    x = 173,150,176.90

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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.