Home / 3,279,391.62-4,908,998.33-2,139,699.78

Finding the Fourth Proportional to 3,279,391.62, 4,908,998.33 and 2,139,699.78

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Solution

The fourth proportional to 3,279,391.62, 4,908,998.33 and 2,139,699.78 is: 3,202,966.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279,391.62 : 4,908,998.33 = 2,139,699.78 : x
  2. Step 2: Convert to fraction form
    3,279,391.62/4,908,998.33 = 2,139,699.78/x
  3. Step 3: Cross multiply
    3,279,391.62x = 4,908,998.33 × 2,139,699.78
  4. Step 4: Simplify right side
    3,279,391.62x = 10,503,782,636,022.87
  5. Step 5: Solve for x
    x = 10,503,782,636,022.87/3,279,391.62
  6. Step 6: Final answer
    x = 3,202,966.85

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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.