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Finding the Third Proportional to 8,678,847 and 18,900,609

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Solution

The third proportional to 8,678,847 and 18,900,609 is: 41,161,345.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678,847 : 18,900,609 = 18,900,609 : x
  2. Step 2: Convert to fraction form
    8,678,847/18,900,609 = 18,900,609/x
  3. Step 3: Cross multiply
    8,678,847x = 18,900,609 × 18,900,609
  4. Step 4: Simplify right side
    8,678,847x = 357,233,020,570,881
  5. Step 5: Solve for x
    x = 357,233,020,570,881/8,678,847
  6. Step 6: Final answer
    x = 41,161,345.58

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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.