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Finding the Third Proportional to 8,408,656 and 12,985,620

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Solution

The third proportional to 8,408,656 and 12,985,620 is: 20,053,897.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408,656 : 12,985,620 = 12,985,620 : x
  2. Step 2: Convert to fraction form
    8,408,656/12,985,620 = 12,985,620/x
  3. Step 3: Cross multiply
    8,408,656x = 12,985,620 × 12,985,620
  4. Step 4: Simplify right side
    8,408,656x = 168,626,326,784,400
  5. Step 5: Solve for x
    x = 168,626,326,784,400/8,408,656
  6. Step 6: Final answer
    x = 20,053,897.65

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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.