Home / 2,015,819.20-3,023,728.80-1,861,854.40

Finding the Fourth Proportional to 2,015,819.20, 3,023,728.80 and 1,861,854.40

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Solution

The fourth proportional to 2,015,819.20, 3,023,728.80 and 1,861,854.40 is: 2,792,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,015,819.20 : 3,023,728.80 = 1,861,854.40 : x
  2. Step 2: Convert to fraction form
    2,015,819.20/3,023,728.80 = 1,861,854.40/x
  3. Step 3: Cross multiply
    2,015,819.20x = 3,023,728.80 × 1,861,854.40
  4. Step 4: Simplify right side
    2,015,819.20x = 5,629,742,770,686.72
  5. Step 5: Solve for x
    x = 5,629,742,770,686.72/2,015,819.20
  6. Step 6: Final answer
    x = 2,792,781.60

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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.