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Finding the Third Proportional to 8,408,628 and 18,387,600

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Solution

The third proportional to 8,408,628 and 18,387,600 is: 40,209,155.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408,628 : 18,387,600 = 18,387,600 : x
  2. Step 2: Convert to fraction form
    8,408,628/18,387,600 = 18,387,600/x
  3. Step 3: Cross multiply
    8,408,628x = 18,387,600 × 18,387,600
  4. Step 4: Simplify right side
    8,408,628x = 338,103,833,760,000
  5. Step 5: Solve for x
    x = 338,103,833,760,000/8,408,628
  6. Step 6: Final answer
    x = 40,209,155.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.