Home / 3,981,377.61-5,494,235.16-2,215,209.72

Finding the Fourth Proportional to 3,981,377.61, 5,494,235.16 and 2,215,209.72

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Solution

The fourth proportional to 3,981,377.61, 5,494,235.16 and 2,215,209.72 is: 3,056,952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981,377.61 : 5,494,235.16 = 2,215,209.72 : x
  2. Step 2: Convert to fraction form
    3,981,377.61/5,494,235.16 = 2,215,209.72/x
  3. Step 3: Cross multiply
    3,981,377.61x = 5,494,235.16 × 2,215,209.72
  4. Step 4: Simplify right side
    3,981,377.61x = 12,170,883,128,403.10
  5. Step 5: Solve for x
    x = 12,170,883,128,403.10/3,981,377.61
  6. Step 6: Final answer
    x = 3,056,952.72

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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.