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Finding the Third Proportional to 4,278,736 and 9,397,172

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Solution

The third proportional to 4,278,736 and 9,397,172 is: 20,638,534.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278,736 : 9,397,172 = 9,397,172 : x
  2. Step 2: Convert to fraction form
    4,278,736/9,397,172 = 9,397,172/x
  3. Step 3: Cross multiply
    4,278,736x = 9,397,172 × 9,397,172
  4. Step 4: Simplify right side
    4,278,736x = 88,306,841,597,584
  5. Step 5: Solve for x
    x = 88,306,841,597,584/4,278,736
  6. Step 6: Final answer
    x = 20,638,534.74

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.