Home / 3,320,778.75-4,981,567.16-3,139,175.43

Finding the Fourth Proportional to 3,320,778.75, 4,981,567.16 and 3,139,175.43

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Solution

The fourth proportional to 3,320,778.75, 4,981,567.16 and 3,139,175.43 is: 4,709,140.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320,778.75 : 4,981,567.16 = 3,139,175.43 : x
  2. Step 2: Convert to fraction form
    3,320,778.75/4,981,567.16 = 3,139,175.43/x
  3. Step 3: Cross multiply
    3,320,778.75x = 4,981,567.16 × 3,139,175.43
  4. Step 4: Simplify right side
    3,320,778.75x = 15,638,013,215,871.00
  5. Step 5: Solve for x
    x = 15,638,013,215,871.00/3,320,778.75
  6. Step 6: Final answer
    x = 4,709,140.35

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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.