Home / 15,015,043.20-20,719,954.20-8,488,283.42

Finding the Fourth Proportional to 15,015,043.20, 20,719,954.20 and 8,488,283.42

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Solution

The fourth proportional to 15,015,043.20, 20,719,954.20 and 8,488,283.42 is: 11,713,375.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015,043.20 : 20,719,954.20 = 8,488,283.42 : x
  2. Step 2: Convert to fraction form
    15,015,043.20/20,719,954.20 = 8,488,283.42/x
  3. Step 3: Cross multiply
    15,015,043.20x = 20,719,954.20 × 8,488,283.42
  4. Step 4: Simplify right side
    15,015,043.20x = 175,876,843,782,650.28
  5. Step 5: Solve for x
    x = 175,876,843,782,650.28/15,015,043.20
  6. Step 6: Final answer
    x = 11,713,375.81

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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.