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Finding the Third Proportional to 1,838,199 and 3,990,228

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Solution

The third proportional to 1,838,199 and 3,990,228 is: 8,661,695.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838,199 : 3,990,228 = 3,990,228 : x
  2. Step 2: Convert to fraction form
    1,838,199/3,990,228 = 3,990,228/x
  3. Step 3: Cross multiply
    1,838,199x = 3,990,228 × 3,990,228
  4. Step 4: Simplify right side
    1,838,199x = 15,921,919,491,984
  5. Step 5: Solve for x
    x = 15,921,919,491,984/1,838,199
  6. Step 6: Final answer
    x = 8,661,695.22

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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.