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Finding the Third Proportional to 4,040,442 and 8,721,837

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Solution

The third proportional to 4,040,442 and 8,721,837 is: 18,827,257.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,040,442 : 8,721,837 = 8,721,837 : x
  2. Step 2: Convert to fraction form
    4,040,442/8,721,837 = 8,721,837/x
  3. Step 3: Cross multiply
    4,040,442x = 8,721,837 × 8,721,837
  4. Step 4: Simplify right side
    4,040,442x = 76,070,440,654,569
  5. Step 5: Solve for x
    x = 76,070,440,654,569/4,040,442
  6. Step 6: Final answer
    x = 18,827,257.18

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.