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Finding the Third Proportional to 8,408,638 and 12,985,593

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Solution

The third proportional to 8,408,638 and 12,985,593 is: 20,053,857.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408,638 : 12,985,593 = 12,985,593 : x
  2. Step 2: Convert to fraction form
    8,408,638/12,985,593 = 12,985,593/x
  3. Step 3: Cross multiply
    8,408,638x = 12,985,593 × 12,985,593
  4. Step 4: Simplify right side
    8,408,638x = 168,625,625,561,649
  5. Step 5: Solve for x
    x = 168,625,625,561,649/8,408,638
  6. Step 6: Final answer
    x = 20,053,857.18

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.