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Finding the Third Proportional to 8,481,919 and 18,308,843

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Solution

The third proportional to 8,481,919 and 18,308,843 is: 39,520,977.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481,919 : 18,308,843 = 18,308,843 : x
  2. Step 2: Convert to fraction form
    8,481,919/18,308,843 = 18,308,843/x
  3. Step 3: Cross multiply
    8,481,919x = 18,308,843 × 18,308,843
  4. Step 4: Simplify right side
    8,481,919x = 335,213,731,998,649
  5. Step 5: Solve for x
    x = 335,213,731,998,649/8,481,919
  6. Step 6: Final answer
    x = 39,520,977.74

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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.