Home / 10,530,067.20-15,771,481.20-8,640,499.20

Finding the Fourth Proportional to 10,530,067.20, 15,771,481.20 and 8,640,499.20

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Solution

The fourth proportional to 10,530,067.20, 15,771,481.20 and 8,640,499.20 is: 12,941,367.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530,067.20 : 15,771,481.20 = 8,640,499.20 : x
  2. Step 2: Convert to fraction form
    10,530,067.20/15,771,481.20 = 8,640,499.20/x
  3. Step 3: Cross multiply
    10,530,067.20x = 15,771,481.20 × 8,640,499.20
  4. Step 4: Simplify right side
    10,530,067.20x = 136,273,470,691,415.02
  5. Step 5: Solve for x
    x = 136,273,470,691,415.02/10,530,067.20
  6. Step 6: Final answer
    x = 12,941,367.62

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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.