Home / 522,288,847.26-720,757,531.53-287,338,944.78

Finding the Fourth Proportional to 522,288,847.26, 720,757,531.53 and 287,338,944.78

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Solution

The fourth proportional to 522,288,847.26, 720,757,531.53 and 287,338,944.78 is: 396,527,150.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,288,847.26 : 720,757,531.53 = 287,338,944.78 : x
  2. Step 2: Convert to fraction form
    522,288,847.26/720,757,531.53 = 287,338,944.78/x
  3. Step 3: Cross multiply
    522,288,847.26x = 720,757,531.53 × 287,338,944.78
  4. Step 4: Simplify right side
    522,288,847.26x = 207,101,708,552,067,744
  5. Step 5: Solve for x
    x = 207,101,708,552,067,744/522,288,847.26
  6. Step 6: Final answer
    x = 396,527,150.90

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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.