Home / 5,642,375.12-7,791,791.88-3,928,182.80

Finding the Fourth Proportional to 5,642,375.12, 7,791,791.88 and 3,928,182.80

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Solution

The fourth proportional to 5,642,375.12, 7,791,791.88 and 3,928,182.80 is: 5,424,591.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,642,375.12 : 7,791,791.88 = 3,928,182.80 : x
  2. Step 2: Convert to fraction form
    5,642,375.12/7,791,791.88 = 3,928,182.80/x
  3. Step 3: Cross multiply
    5,642,375.12x = 7,791,791.88 × 3,928,182.80
  4. Step 4: Simplify right side
    5,642,375.12x = 30,607,582,844,195.66
  5. Step 5: Solve for x
    x = 30,607,582,844,195.66/5,642,375.12
  6. Step 6: Final answer
    x = 5,424,591.98

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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.