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Finding the Third Proportional to 3,995,670 and 8,629,782

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Solution

The third proportional to 3,995,670 and 8,629,782 is: 18,638,460.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,995,670 : 8,629,782 = 8,629,782 : x
  2. Step 2: Convert to fraction form
    3,995,670/8,629,782 = 8,629,782/x
  3. Step 3: Cross multiply
    3,995,670x = 8,629,782 × 8,629,782
  4. Step 4: Simplify right side
    3,995,670x = 74,473,137,367,524
  5. Step 5: Solve for x
    x = 74,473,137,367,524/3,995,670
  6. Step 6: Final answer
    x = 18,638,460.48

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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.