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Finding the Third Proportional to 138,229,347 and 296,972,603

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Solution

The third proportional to 138,229,347 and 296,972,603 is: 638,017,388.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,229,347 : 296,972,603 = 296,972,603 : x
  2. Step 2: Convert to fraction form
    138,229,347/296,972,603 = 296,972,603/x
  3. Step 3: Cross multiply
    138,229,347x = 296,972,603 × 296,972,603
  4. Step 4: Simplify right side
    138,229,347x = 88,192,726,932,595,616
  5. Step 5: Solve for x
    x = 88,192,726,932,595,616/138,229,347
  6. Step 6: Final answer
    x = 638,017,388.11

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.