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Finding the Third Proportional to 3,904,945 and 8,481,555

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Solution

The third proportional to 3,904,945 and 8,481,555 is: 18,421,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904,945 : 8,481,555 = 8,481,555 : x
  2. Step 2: Convert to fraction form
    3,904,945/8,481,555 = 8,481,555/x
  3. Step 3: Cross multiply
    3,904,945x = 8,481,555 × 8,481,555
  4. Step 4: Simplify right side
    3,904,945x = 71,936,775,218,025
  5. Step 5: Solve for x
    x = 71,936,775,218,025/3,904,945
  6. Step 6: Final answer
    x = 18,421,968.87

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.