Home / 921,198,672.72-1,382,040,306.81-331,048,532.52

Finding the Fourth Proportional to 921,198,672.72, 1,382,040,306.81 and 331,048,532.52

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Solution

The fourth proportional to 921,198,672.72, 1,382,040,306.81 and 331,048,532.52 is: 496,659,872.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,198,672.72 : 1,382,040,306.81 = 331,048,532.52 : x
  2. Step 2: Convert to fraction form
    921,198,672.72/1,382,040,306.81 = 331,048,532.52/x
  3. Step 3: Cross multiply
    921,198,672.72x = 1,382,040,306.81 × 331,048,532.52
  4. Step 4: Simplify right side
    921,198,672.72x = 457,522,415,452,940,992
  5. Step 5: Solve for x
    x = 457,522,415,452,940,992/921,198,672.72
  6. Step 6: Final answer
    x = 496,659,872.62

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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.