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Finding the Third Proportional to 3,991,434 and 8,266,367

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Solution

The third proportional to 3,991,434 and 8,266,367 is: 17,119,868.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,434 : 8,266,367 = 8,266,367 : x
  2. Step 2: Convert to fraction form
    3,991,434/8,266,367 = 8,266,367/x
  3. Step 3: Cross multiply
    3,991,434x = 8,266,367 × 8,266,367
  4. Step 4: Simplify right side
    3,991,434x = 68,332,823,378,689
  5. Step 5: Solve for x
    x = 68,332,823,378,689/3,991,434
  6. Step 6: Final answer
    x = 17,119,868.04

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.