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Finding the Third Proportional to 13,275,778 and 20,503,247

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Solution

The third proportional to 13,275,778 and 20,503,247 is: 31,665,423.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275,778 : 20,503,247 = 20,503,247 : x
  2. Step 2: Convert to fraction form
    13,275,778/20,503,247 = 20,503,247/x
  3. Step 3: Cross multiply
    13,275,778x = 20,503,247 × 20,503,247
  4. Step 4: Simplify right side
    13,275,778x = 420,383,137,543,009
  5. Step 5: Solve for x
    x = 420,383,137,543,009/13,275,778
  6. Step 6: Final answer
    x = 31,665,423.87

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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.