Home / 2,129,406.20-3,192,942.90-865,806.20

Finding the Fourth Proportional to 2,129,406.20, 3,192,942.90 and 865,806.20

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Solution

The fourth proportional to 2,129,406.20, 3,192,942.90 and 865,806.20 is: 1,298,235.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,406.20 : 3,192,942.90 = 865,806.20 : x
  2. Step 2: Convert to fraction form
    2,129,406.20/3,192,942.90 = 865,806.20/x
  3. Step 3: Cross multiply
    2,129,406.20x = 3,192,942.90 × 865,806.20
  4. Step 4: Simplify right side
    2,129,406.20x = 2,764,469,759,065.98
  5. Step 5: Solve for x
    x = 2,764,469,759,065.98/2,129,406.20
  6. Step 6: Final answer
    x = 1,298,235.05

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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.