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Finding the Third Proportional to 4,279,372 and 9,398,424

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Solution

The third proportional to 4,279,372 and 9,398,424 is: 20,640,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279,372 : 9,398,424 = 9,398,424 : x
  2. Step 2: Convert to fraction form
    4,279,372/9,398,424 = 9,398,424/x
  3. Step 3: Cross multiply
    4,279,372x = 9,398,424 × 9,398,424
  4. Step 4: Simplify right side
    4,279,372x = 88,330,373,683,776
  5. Step 5: Solve for x
    x = 88,330,373,683,776/4,279,372
  6. Step 6: Final answer
    x = 20,640,966.40

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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.