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Finding the Third Proportional to 68,091,138 and 108,399,324

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Solution

The third proportional to 68,091,138 and 108,399,324 is: 172,568,909.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,091,138 : 108,399,324 = 108,399,324 : x
  2. Step 2: Convert to fraction form
    68,091,138/108,399,324 = 108,399,324/x
  3. Step 3: Cross multiply
    68,091,138x = 108,399,324 × 108,399,324
  4. Step 4: Simplify right side
    68,091,138x = 11,750,413,443,656,976
  5. Step 5: Solve for x
    x = 11,750,413,443,656,976/68,091,138
  6. Step 6: Final answer
    x = 172,568,909.68

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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.