Home / 6,731,490.72-9,288,233.64-3,978,640.92

Finding the Fourth Proportional to 6,731,490.72, 9,288,233.64 and 3,978,640.92

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Solution

The fourth proportional to 6,731,490.72, 9,288,233.64 and 3,978,640.92 is: 5,489,801.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,731,490.72 : 9,288,233.64 = 3,978,640.92 : x
  2. Step 2: Convert to fraction form
    6,731,490.72/9,288,233.64 = 3,978,640.92/x
  3. Step 3: Cross multiply
    6,731,490.72x = 9,288,233.64 × 3,978,640.92
  4. Step 4: Simplify right side
    6,731,490.72x = 36,954,546,434,624.55
  5. Step 5: Solve for x
    x = 36,954,546,434,624.55/6,731,490.72
  6. Step 6: Final answer
    x = 5,489,801.29

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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.