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Finding the Third Proportional to 3,922,149 and 8,474,520

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Solution

The third proportional to 3,922,149 and 8,474,520 is: 18,310,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922,149 : 8,474,520 = 8,474,520 : x
  2. Step 2: Convert to fraction form
    3,922,149/8,474,520 = 8,474,520/x
  3. Step 3: Cross multiply
    3,922,149x = 8,474,520 × 8,474,520
  4. Step 4: Simplify right side
    3,922,149x = 71,817,489,230,400
  5. Step 5: Solve for x
    x = 71,817,489,230,400/3,922,149
  6. Step 6: Final answer
    x = 18,310,749.85

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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.