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Finding the Third Proportional to 9,479,884 and 20,398,400

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Solution

The third proportional to 9,479,884 and 20,398,400 is: 43,892,385.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,479,884 : 20,398,400 = 20,398,400 : x
  2. Step 2: Convert to fraction form
    9,479,884/20,398,400 = 20,398,400/x
  3. Step 3: Cross multiply
    9,479,884x = 20,398,400 × 20,398,400
  4. Step 4: Simplify right side
    9,479,884x = 416,094,722,560,000
  5. Step 5: Solve for x
    x = 416,094,722,560,000/9,479,884
  6. Step 6: Final answer
    x = 43,892,385.45

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.