Home / 492,815,200.80-739,174,760.10-129,309,556.80

Finding the Fourth Proportional to 492,815,200.80, 739,174,760.10 and 129,309,556.80

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Solution

The fourth proportional to 492,815,200.80, 739,174,760.10 and 129,309,556.80 is: 193,951,729.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,815,200.80 : 739,174,760.10 = 129,309,556.80 : x
  2. Step 2: Convert to fraction form
    492,815,200.80/739,174,760.10 = 129,309,556.80/x
  3. Step 3: Cross multiply
    492,815,200.80x = 739,174,760.10 × 129,309,556.80
  4. Step 4: Simplify right side
    492,815,200.80x = 95,582,360,626,277,328
  5. Step 5: Solve for x
    x = 95,582,360,626,277,328/492,815,200.80
  6. Step 6: Final answer
    x = 193,951,729.72

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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.