Home / 2,128,040.20-3,192,060.30-1,330,222.60

Finding the Fourth Proportional to 2,128,040.20, 3,192,060.30 and 1,330,222.60

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Solution

The fourth proportional to 2,128,040.20, 3,192,060.30 and 1,330,222.60 is: 1,995,333.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,040.20 : 3,192,060.30 = 1,330,222.60 : x
  2. Step 2: Convert to fraction form
    2,128,040.20/3,192,060.30 = 1,330,222.60/x
  3. Step 3: Cross multiply
    2,128,040.20x = 3,192,060.30 × 1,330,222.60
  4. Step 4: Simplify right side
    2,128,040.20x = 4,246,150,751,622.78
  5. Step 5: Solve for x
    x = 4,246,150,751,622.78/2,128,040.20
  6. Step 6: Final answer
    x = 1,995,333.90

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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.