Home / 3,850,420.78-5,311,912.72-2,321,678.62

Finding the Fourth Proportional to 3,850,420.78, 5,311,912.72 and 2,321,678.62

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Solution

The fourth proportional to 3,850,420.78, 5,311,912.72 and 2,321,678.62 is: 3,202,910.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,850,420.78 : 5,311,912.72 = 2,321,678.62 : x
  2. Step 2: Convert to fraction form
    3,850,420.78/5,311,912.72 = 2,321,678.62/x
  3. Step 3: Cross multiply
    3,850,420.78x = 5,311,912.72 × 2,321,678.62
  4. Step 4: Simplify right side
    3,850,420.78x = 12,332,554,155,162.09
  5. Step 5: Solve for x
    x = 12,332,554,155,162.09/3,850,420.78
  6. Step 6: Final answer
    x = 3,202,910.77

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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.