Home / 13,488,321.20-20,232,481.80-9,378,510.80

Finding the Fourth Proportional to 13,488,321.20, 20,232,481.80 and 9,378,510.80

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Solution

The fourth proportional to 13,488,321.20, 20,232,481.80 and 9,378,510.80 is: 14,067,766.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488,321.20 : 20,232,481.80 = 9,378,510.80 : x
  2. Step 2: Convert to fraction form
    13,488,321.20/20,232,481.80 = 9,378,510.80/x
  3. Step 3: Cross multiply
    13,488,321.20x = 20,232,481.80 × 9,378,510.80
  4. Step 4: Simplify right side
    13,488,321.20x = 189,750,549,072,103.47
  5. Step 5: Solve for x
    x = 189,750,549,072,103.47/13,488,321.20
  6. Step 6: Final answer
    x = 14,067,766.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.