Home / 87,253,512.64-130,879,147.84-28,987,982.21

Finding the Fourth Proportional to 87,253,512.64, 130,879,147.84 and 28,987,982.21

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Solution

The fourth proportional to 87,253,512.64, 130,879,147.84 and 28,987,982.21 is: 43,481,600.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,253,512.64 : 130,879,147.84 = 28,987,982.21 : x
  2. Step 2: Convert to fraction form
    87,253,512.64/130,879,147.84 = 28,987,982.21/x
  3. Step 3: Cross multiply
    87,253,512.64x = 130,879,147.84 × 28,987,982.21
  4. Step 4: Simplify right side
    87,253,512.64x = 3,793,922,409,245,880
  5. Step 5: Solve for x
    x = 3,793,922,409,245,880/87,253,512.64
  6. Step 6: Final answer
    x = 43,481,600.85

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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.