Home / 2,813,906.26-4,220,861-1,976,197.78

Finding the Fourth Proportional to 2,813,906.26, 4,220,861 and 1,976,197.78

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Solution

The fourth proportional to 2,813,906.26, 4,220,861 and 1,976,197.78 is: 2,964,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,813,906.26 : 4,220,861 = 1,976,197.78 : x
  2. Step 2: Convert to fraction form
    2,813,906.26/4,220,861 = 1,976,197.78/x
  3. Step 3: Cross multiply
    2,813,906.26x = 4,220,861 × 1,976,197.78
  4. Step 4: Simplify right side
    2,813,906.26x = 8,341,256,137,888.58
  5. Step 5: Solve for x
    x = 8,341,256,137,888.58/2,813,906.26
  6. Step 6: Final answer
    x = 2,964,297.80

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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.