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Finding the Third Proportional to 8,494,720 and 18,341,812

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Solution

The third proportional to 8,494,720 and 18,341,812 is: 39,603,667.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,494,720 : 18,341,812 = 18,341,812 : x
  2. Step 2: Convert to fraction form
    8,494,720/18,341,812 = 18,341,812/x
  3. Step 3: Cross multiply
    8,494,720x = 18,341,812 × 18,341,812
  4. Step 4: Simplify right side
    8,494,720x = 336,422,067,443,344
  5. Step 5: Solve for x
    x = 336,422,067,443,344/8,494,720
  6. Step 6: Final answer
    x = 39,603,667.62

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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.