Home / 2,188,659.78-2,998,449.92-2,106,814.11

Finding the Fourth Proportional to 2,188,659.78, 2,998,449.92 and 2,106,814.11

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Solution

The fourth proportional to 2,188,659.78, 2,998,449.92 and 2,106,814.11 is: 2,886,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,659.78 : 2,998,449.92 = 2,106,814.11 : x
  2. Step 2: Convert to fraction form
    2,188,659.78/2,998,449.92 = 2,106,814.11/x
  3. Step 3: Cross multiply
    2,188,659.78x = 2,998,449.92 × 2,106,814.11
  4. Step 4: Simplify right side
    2,188,659.78x = 6,317,176,589,050.30
  5. Step 5: Solve for x
    x = 6,317,176,589,050.30/2,188,659.78
  6. Step 6: Final answer
    x = 2,886,321.87

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.