Home / 6,897,638.75-9,518,744.12-3,998,710.13

Finding the Fourth Proportional to 6,897,638.75, 9,518,744.12 and 3,998,710.13

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Solution

The fourth proportional to 6,897,638.75, 9,518,744.12 and 3,998,710.13 is: 5,518,221.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,897,638.75 : 9,518,744.12 = 3,998,710.13 : x
  2. Step 2: Convert to fraction form
    6,897,638.75/9,518,744.12 = 3,998,710.13/x
  3. Step 3: Cross multiply
    6,897,638.75x = 9,518,744.12 × 3,998,710.13
  4. Step 4: Simplify right side
    6,897,638.75x = 38,062,698,469,934.66
  5. Step 5: Solve for x
    x = 38,062,698,469,934.66/6,897,638.75
  6. Step 6: Final answer
    x = 5,518,221.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.