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Finding the Third Proportional to 9,021,720 and 19,451,880

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Solution

The third proportional to 9,021,720 and 19,451,880 is: 41,940,520.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021,720 : 19,451,880 = 19,451,880 : x
  2. Step 2: Convert to fraction form
    9,021,720/19,451,880 = 19,451,880/x
  3. Step 3: Cross multiply
    9,021,720x = 19,451,880 × 19,451,880
  4. Step 4: Simplify right side
    9,021,720x = 378,375,635,534,400
  5. Step 5: Solve for x
    x = 378,375,635,534,400/9,021,720
  6. Step 6: Final answer
    x = 41,940,520.82

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.