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Finding the Third Proportional to 8,615,682 and 18,172,512

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Solution

The third proportional to 8,615,682 and 18,172,512 is: 38,330,127.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615,682 : 18,172,512 = 18,172,512 : x
  2. Step 2: Convert to fraction form
    8,615,682/18,172,512 = 18,172,512/x
  3. Step 3: Cross multiply
    8,615,682x = 18,172,512 × 18,172,512
  4. Step 4: Simplify right side
    8,615,682x = 330,240,192,390,144
  5. Step 5: Solve for x
    x = 330,240,192,390,144/8,615,682
  6. Step 6: Final answer
    x = 38,330,127.83

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.