Home / 2,682,128.80-4,023,193.20-2,578,909.60

Finding the Fourth Proportional to 2,682,128.80, 4,023,193.20 and 2,578,909.60

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Solution

The fourth proportional to 2,682,128.80, 4,023,193.20 and 2,578,909.60 is: 3,868,364.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,682,128.80 : 4,023,193.20 = 2,578,909.60 : x
  2. Step 2: Convert to fraction form
    2,682,128.80/4,023,193.20 = 2,578,909.60/x
  3. Step 3: Cross multiply
    2,682,128.80x = 4,023,193.20 × 2,578,909.60
  4. Step 4: Simplify right side
    2,682,128.80x = 10,375,451,566,134.72
  5. Step 5: Solve for x
    x = 10,375,451,566,134.72/2,682,128.80
  6. Step 6: Final answer
    x = 3,868,364.40

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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.