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Finding the Third Proportional to 3,954,687 and 8,634,270

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Solution

The third proportional to 3,954,687 and 8,634,270 is: 18,851,205.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954,687 : 8,634,270 = 8,634,270 : x
  2. Step 2: Convert to fraction form
    3,954,687/8,634,270 = 8,634,270/x
  3. Step 3: Cross multiply
    3,954,687x = 8,634,270 × 8,634,270
  4. Step 4: Simplify right side
    3,954,687x = 74,550,618,432,900
  5. Step 5: Solve for x
    x = 74,550,618,432,900/3,954,687
  6. Step 6: Final answer
    x = 18,851,205.78

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.