Home / 921,198,674.72-1,382,040,309.82-331,048,534.52

Finding the Fourth Proportional to 921,198,674.72, 1,382,040,309.82 and 331,048,534.52

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Solution

The fourth proportional to 921,198,674.72, 1,382,040,309.82 and 331,048,534.52 is: 496,659,875.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,198,674.72 : 1,382,040,309.82 = 331,048,534.52 : x
  2. Step 2: Convert to fraction form
    921,198,674.72/1,382,040,309.82 = 331,048,534.52/x
  3. Step 3: Cross multiply
    921,198,674.72x = 1,382,040,309.82 × 331,048,534.52
  4. Step 4: Simplify right side
    921,198,674.72x = 457,522,419,213,477,696
  5. Step 5: Solve for x
    x = 457,522,419,213,477,696/921,198,674.72
  6. Step 6: Final answer
    x = 496,659,875.63

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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.