Home / 3,145,103.90-4,338,469.96-1,887,469.76

Finding the Fourth Proportional to 3,145,103.90, 4,338,469.96 and 1,887,469.76

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Solution

The fourth proportional to 3,145,103.90, 4,338,469.96 and 1,887,469.76 is: 2,603,643.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145,103.90 : 4,338,469.96 = 1,887,469.76 : x
  2. Step 2: Convert to fraction form
    3,145,103.90/4,338,469.96 = 1,887,469.76/x
  3. Step 3: Cross multiply
    3,145,103.90x = 4,338,469.96 × 1,887,469.76
  4. Step 4: Simplify right side
    3,145,103.90x = 8,188,730,867,664.47
  5. Step 5: Solve for x
    x = 8,188,730,867,664.47/3,145,103.90
  6. Step 6: Final answer
    x = 2,603,643.99

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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.