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Finding the Third Proportional to 5,398,855 and 8,278,689

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Solution

The third proportional to 5,398,855 and 8,278,689 is: 12,694,671.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,398,855 : 8,278,689 = 8,278,689 : x
  2. Step 2: Convert to fraction form
    5,398,855/8,278,689 = 8,278,689/x
  3. Step 3: Cross multiply
    5,398,855x = 8,278,689 × 8,278,689
  4. Step 4: Simplify right side
    5,398,855x = 68,536,691,558,721
  5. Step 5: Solve for x
    x = 68,536,691,558,721/5,398,855
  6. Step 6: Final answer
    x = 12,694,671.66

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.