Home / 2,128,172.56-3,193,520.11-1,993,519.37

Finding the Fourth Proportional to 2,128,172.56, 3,193,520.11 and 1,993,519.37

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Solution

The fourth proportional to 2,128,172.56, 3,193,520.11 and 1,993,519.37 is: 2,991,460.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,172.56 : 3,193,520.11 = 1,993,519.37 : x
  2. Step 2: Convert to fraction form
    2,128,172.56/3,193,520.11 = 1,993,519.37/x
  3. Step 3: Cross multiply
    2,128,172.56x = 3,193,520.11 × 1,993,519.37
  4. Step 4: Simplify right side
    2,128,172.56x = 6,366,344,200,769.53
  5. Step 5: Solve for x
    x = 6,366,344,200,769.53/2,128,172.56
  6. Step 6: Final answer
    x = 2,991,460.53

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1.5x scale

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.