Home / 6,320,687.72-8,722,531.52-3,420,127.92

Finding the Fourth Proportional to 6,320,687.72, 8,722,531.52 and 3,420,127.92

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Solution

The fourth proportional to 6,320,687.72, 8,722,531.52 and 3,420,127.92 is: 4,719,767.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,320,687.72 : 8,722,531.52 = 3,420,127.92 : x
  2. Step 2: Convert to fraction form
    6,320,687.72/8,722,531.52 = 3,420,127.92/x
  3. Step 3: Cross multiply
    6,320,687.72x = 8,722,531.52 × 3,420,127.92
  4. Step 4: Simplify right side
    6,320,687.72x = 29,832,173,584,632.04
  5. Step 5: Solve for x
    x = 29,832,173,584,632.04/6,320,687.72
  6. Step 6: Final answer
    x = 4,719,767.04

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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.