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Finding the Third Proportional to 5,418,438 and 11,844,354

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Solution

The third proportional to 5,418,438 and 11,844,354 is: 25,890,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418,438 : 11,844,354 = 11,844,354 : x
  2. Step 2: Convert to fraction form
    5,418,438/11,844,354 = 11,844,354/x
  3. Step 3: Cross multiply
    5,418,438x = 11,844,354 × 11,844,354
  4. Step 4: Simplify right side
    5,418,438x = 140,288,721,677,316
  5. Step 5: Solve for x
    x = 140,288,721,677,316/5,418,438
  6. Step 6: Final answer
    x = 25,890,989.56

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.