Home / 7,142,324.88-9,856,479.42-3,879,203.44

Finding the Fourth Proportional to 7,142,324.88, 9,856,479.42 and 3,879,203.44

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Solution

The fourth proportional to 7,142,324.88, 9,856,479.42 and 3,879,203.44 is: 5,353,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142,324.88 : 9,856,479.42 = 3,879,203.44 : x
  2. Step 2: Convert to fraction form
    7,142,324.88/9,856,479.42 = 3,879,203.44/x
  3. Step 3: Cross multiply
    7,142,324.88x = 9,856,479.42 × 3,879,203.44
  4. Step 4: Simplify right side
    7,142,324.88x = 38,235,288,872,353.20
  5. Step 5: Solve for x
    x = 38,235,288,872,353.20/7,142,324.88
  6. Step 6: Final answer
    x = 5,353,339.36

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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.