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Finding the Third Proportional to 3,969,634 and 8,611,406

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Solution

The third proportional to 3,969,634 and 8,611,406 is: 18,680,894.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969,634 : 8,611,406 = 8,611,406 : x
  2. Step 2: Convert to fraction form
    3,969,634/8,611,406 = 8,611,406/x
  3. Step 3: Cross multiply
    3,969,634x = 8,611,406 × 8,611,406
  4. Step 4: Simplify right side
    3,969,634x = 74,156,313,296,836
  5. Step 5: Solve for x
    x = 74,156,313,296,836/3,969,634
  6. Step 6: Final answer
    x = 18,680,894.33

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.