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Finding the Third Proportional to 39,358,074 and 81,231,259

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Solution

The third proportional to 39,358,074 and 81,231,259 is: 167,653,463.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,358,074 : 81,231,259 = 81,231,259 : x
  2. Step 2: Convert to fraction form
    39,358,074/81,231,259 = 81,231,259/x
  3. Step 3: Cross multiply
    39,358,074x = 81,231,259 × 81,231,259
  4. Step 4: Simplify right side
    39,358,074x = 6,598,517,438,725,081
  5. Step 5: Solve for x
    x = 6,598,517,438,725,081/39,358,074
  6. Step 6: Final answer
    x = 167,653,463.90

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.