Home / 13,488,339.20-20,232,508.80-9,378,528.80

Finding the Fourth Proportional to 13,488,339.20, 20,232,508.80 and 9,378,528.80

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Solution

The fourth proportional to 13,488,339.20, 20,232,508.80 and 9,378,528.80 is: 14,067,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488,339.20 : 20,232,508.80 = 9,378,528.80 : x
  2. Step 2: Convert to fraction form
    13,488,339.20/20,232,508.80 = 9,378,528.80/x
  3. Step 3: Cross multiply
    13,488,339.20x = 20,232,508.80 × 9,378,528.80
  4. Step 4: Simplify right side
    13,488,339.20x = 189,751,166,477,053.47
  5. Step 5: Solve for x
    x = 189,751,166,477,053.47/13,488,339.20
  6. Step 6: Final answer
    x = 14,067,793.20

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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.