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Finding the Third Proportional to 4,278,710 and 9,397,120

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Solution

The third proportional to 4,278,710 and 9,397,120 is: 20,638,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278,710 : 9,397,120 = 9,397,120 : x
  2. Step 2: Convert to fraction form
    4,278,710/9,397,120 = 9,397,120/x
  3. Step 3: Cross multiply
    4,278,710x = 9,397,120 × 9,397,120
  4. Step 4: Simplify right side
    4,278,710x = 88,305,864,294,400
  5. Step 5: Solve for x
    x = 88,305,864,294,400/4,278,710
  6. Step 6: Final answer
    x = 20,638,431.75

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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.