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Finding the Third Proportional to 156,786,356 and 243,750,387

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Solution

The third proportional to 156,786,356 and 243,750,387 is: 378,950,392.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,786,356 : 243,750,387 = 243,750,387 : x
  2. Step 2: Convert to fraction form
    156,786,356/243,750,387 = 243,750,387/x
  3. Step 3: Cross multiply
    156,786,356x = 243,750,387 × 243,750,387
  4. Step 4: Simplify right side
    156,786,356x = 59,414,251,162,649,768
  5. Step 5: Solve for x
    x = 59,414,251,162,649,768/156,786,356
  6. Step 6: Final answer
    x = 378,950,392.61

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.