Home / 7,822,514.28-11,733,780.78-2,142,787.56

Finding the Fourth Proportional to 7,822,514.28, 11,733,780.78 and 2,142,787.56

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Solution

The fourth proportional to 7,822,514.28, 11,733,780.78 and 2,142,787.56 is: 3,214,183.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,822,514.28 : 11,733,780.78 = 2,142,787.56 : x
  2. Step 2: Convert to fraction form
    7,822,514.28/11,733,780.78 = 2,142,787.56/x
  3. Step 3: Cross multiply
    7,822,514.28x = 11,733,780.78 × 2,142,787.56
  4. Step 4: Simplify right side
    7,822,514.28x = 25,142,999,487,151.10
  5. Step 5: Solve for x
    x = 25,142,999,487,151.10/7,822,514.28
  6. Step 6: Final answer
    x = 3,214,183.90

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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.