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Finding the Third Proportional to 8,619,631 and 18,752,611

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Solution

The third proportional to 8,619,631 and 18,752,611 is: 40,797,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619,631 : 18,752,611 = 18,752,611 : x
  2. Step 2: Convert to fraction form
    8,619,631/18,752,611 = 18,752,611/x
  3. Step 3: Cross multiply
    8,619,631x = 18,752,611 × 18,752,611
  4. Step 4: Simplify right side
    8,619,631x = 351,660,419,317,321
  5. Step 5: Solve for x
    x = 351,660,419,317,321/8,619,631
  6. Step 6: Final answer
    x = 40,797,618.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.