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Finding the Third Proportional to 13,161,720 and 20,340,027

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Solution

The third proportional to 13,161,720 and 20,340,027 is: 31,433,330.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161,720 : 20,340,027 = 20,340,027 : x
  2. Step 2: Convert to fraction form
    13,161,720/20,340,027 = 20,340,027/x
  3. Step 3: Cross multiply
    13,161,720x = 20,340,027 × 20,340,027
  4. Step 4: Simplify right side
    13,161,720x = 413,716,698,360,729
  5. Step 5: Solve for x
    x = 413,716,698,360,729/13,161,720
  6. Step 6: Final answer
    x = 31,433,330.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.