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Finding the Third Proportional to 3,108,978 and 6,690,354

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Solution

The third proportional to 3,108,978 and 6,690,354 is: 14,397,283.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,108,978 : 6,690,354 = 6,690,354 : x
  2. Step 2: Convert to fraction form
    3,108,978/6,690,354 = 6,690,354/x
  3. Step 3: Cross multiply
    3,108,978x = 6,690,354 × 6,690,354
  4. Step 4: Simplify right side
    3,108,978x = 44,760,836,645,316
  5. Step 5: Solve for x
    x = 44,760,836,645,316/3,108,978
  6. Step 6: Final answer
    x = 14,397,283.17

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.