Home / 660,375,832.92-911,339,047.53-363,040,794.78

Finding the Fourth Proportional to 660,375,832.92, 911,339,047.53 and 363,040,794.78

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Solution

The fourth proportional to 660,375,832.92, 911,339,047.53 and 363,040,794.78 is: 501,007,510.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,375,832.92 : 911,339,047.53 = 363,040,794.78 : x
  2. Step 2: Convert to fraction form
    660,375,832.92/911,339,047.53 = 363,040,794.78/x
  3. Step 3: Cross multiply
    660,375,832.92x = 911,339,047.53 × 363,040,794.78
  4. Step 4: Simplify right side
    660,375,832.92x = 330,853,252,129,339,328
  5. Step 5: Solve for x
    x = 330,853,252,129,339,328/660,375,832.92
  6. Step 6: Final answer
    x = 501,007,510.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.