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Finding the Third Proportional to 80,701,380 and 128,474,494.88

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Solution

The third proportional to 80,701,380 and 128,474,494.88 is: 204,528,049.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,701,380 : 128,474,494.88 = 128,474,494.88 : x
  2. Step 2: Convert to fraction form
    80,701,380/128,474,494.88 = 128,474,494.88/x
  3. Step 3: Cross multiply
    80,701,380x = 128,474,494.88 × 128,474,494.88
  4. Step 4: Simplify right side
    80,701,380x = 16,505,695,833,386,402
  5. Step 5: Solve for x
    x = 16,505,695,833,386,402/80,701,380
  6. Step 6: Final answer
    x = 204,528,049.38

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.