Home / 3,658,138.75-5,486,045.10-3,419,321.86

Finding the Fourth Proportional to 3,658,138.75, 5,486,045.10 and 3,419,321.86

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Solution

The fourth proportional to 3,658,138.75, 5,486,045.10 and 3,419,321.86 is: 5,127,895.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,658,138.75 : 5,486,045.10 = 3,419,321.86 : x
  2. Step 2: Convert to fraction form
    3,658,138.75/5,486,045.10 = 3,419,321.86/x
  3. Step 3: Cross multiply
    3,658,138.75x = 5,486,045.10 × 3,419,321.86
  4. Step 4: Simplify right side
    3,658,138.75x = 18,758,553,935,375.88
  5. Step 5: Solve for x
    x = 18,758,553,935,375.88/3,658,138.75
  6. Step 6: Final answer
    x = 5,127,895.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.