Home / 13,468,080.80-20,202,121.20-9,429,129.20

Finding the Fourth Proportional to 13,468,080.80, 20,202,121.20 and 9,429,129.20

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Solution

The fourth proportional to 13,468,080.80, 20,202,121.20 and 9,429,129.20 is: 14,143,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,468,080.80 : 20,202,121.20 = 9,429,129.20 : x
  2. Step 2: Convert to fraction form
    13,468,080.80/20,202,121.20 = 9,429,129.20/x
  3. Step 3: Cross multiply
    13,468,080.80x = 20,202,121.20 × 9,429,129.20
  4. Step 4: Simplify right side
    13,468,080.80x = 190,488,410,908,859.03
  5. Step 5: Solve for x
    x = 190,488,410,908,859.03/13,468,080.80
  6. Step 6: Final answer
    x = 14,143,693.80

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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.