Home / 5,178,876.11-7,147,274.67-2,856,223.02

Finding the Fourth Proportional to 5,178,876.11, 7,147,274.67 and 2,856,223.02

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Solution

The fourth proportional to 5,178,876.11, 7,147,274.67 and 2,856,223.02 is: 3,941,822.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,876.11 : 7,147,274.67 = 2,856,223.02 : x
  2. Step 2: Convert to fraction form
    5,178,876.11/7,147,274.67 = 2,856,223.02/x
  3. Step 3: Cross multiply
    5,178,876.11x = 7,147,274.67 × 2,856,223.02
  4. Step 4: Simplify right side
    5,178,876.11x = 20,414,210,442,716.90
  5. Step 5: Solve for x
    x = 20,414,210,442,716.90/5,178,876.11
  6. Step 6: Final answer
    x = 3,941,822.52

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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.