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Finding the Third Proportional to 129,438,012 and 277,299,308

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Solution

The third proportional to 129,438,012 and 277,299,308 is: 594,067,422.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,438,012 : 277,299,308 = 277,299,308 : x
  2. Step 2: Convert to fraction form
    129,438,012/277,299,308 = 277,299,308/x
  3. Step 3: Cross multiply
    129,438,012x = 277,299,308 × 277,299,308
  4. Step 4: Simplify right side
    129,438,012x = 76,894,906,217,278,864
  5. Step 5: Solve for x
    x = 76,894,906,217,278,864/129,438,012
  6. Step 6: Final answer
    x = 594,067,422.92

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.