Home / 5,178,876.52-7,147,275.24-2,856,223.42

Finding the Fourth Proportional to 5,178,876.52, 7,147,275.24 and 2,856,223.42

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Solution

The fourth proportional to 5,178,876.52, 7,147,275.24 and 2,856,223.42 is: 3,941,823.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,876.52 : 7,147,275.24 = 2,856,223.42 : x
  2. Step 2: Convert to fraction form
    5,178,876.52/7,147,275.24 = 2,856,223.42/x
  3. Step 3: Cross multiply
    5,178,876.52x = 7,147,275.24 × 2,856,223.42
  4. Step 4: Simplify right side
    5,178,876.52x = 20,414,214,929,674.12
  5. Step 5: Solve for x
    x = 20,414,214,929,674.12/5,178,876.52
  6. Step 6: Final answer
    x = 3,941,823.07

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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.