Home / 8,189,891.76-12,268,390.32-4,078,828.56

Finding the Fourth Proportional to 8,189,891.76, 12,268,390.32 and 4,078,828.56

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Solution

The fourth proportional to 8,189,891.76, 12,268,390.32 and 4,078,828.56 is: 6,110,051.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189,891.76 : 12,268,390.32 = 4,078,828.56 : x
  2. Step 2: Convert to fraction form
    8,189,891.76/12,268,390.32 = 4,078,828.56/x
  3. Step 3: Cross multiply
    8,189,891.76x = 12,268,390.32 × 4,078,828.56
  4. Step 4: Simplify right side
    8,189,891.76x = 50,040,660,822,443.54
  5. Step 5: Solve for x
    x = 50,040,660,822,443.54/8,189,891.76
  6. Step 6: Final answer
    x = 6,110,051.55

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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.