Home / 87,448,544.20-131,172,816.30-80,879,379.40

Finding the Fourth Proportional to 87,448,544.20, 131,172,816.30 and 80,879,379.40

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Solution

The fourth proportional to 87,448,544.20, 131,172,816.30 and 80,879,379.40 is: 121,319,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,448,544.20 : 131,172,816.30 = 80,879,379.40 : x
  2. Step 2: Convert to fraction form
    87,448,544.20/131,172,816.30 = 80,879,379.40/x
  3. Step 3: Cross multiply
    87,448,544.20x = 131,172,816.30 × 80,879,379.40
  4. Step 4: Simplify right side
    87,448,544.20x = 10,609,175,976,494,204
  5. Step 5: Solve for x
    x = 10,609,175,976,494,204/87,448,544.20
  6. Step 6: Final answer
    x = 121,319,069.10

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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.