Home / 87,448,424.20-131,172,636.30-80,879,259.40

Finding the Fourth Proportional to 87,448,424.20, 131,172,636.30 and 80,879,259.40

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Solution

The fourth proportional to 87,448,424.20, 131,172,636.30 and 80,879,259.40 is: 121,318,889.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,448,424.20 : 131,172,636.30 = 80,879,259.40 : x
  2. Step 2: Convert to fraction form
    87,448,424.20/131,172,636.30 = 80,879,259.40/x
  3. Step 3: Cross multiply
    87,448,424.20x = 131,172,636.30 × 80,879,259.40
  4. Step 4: Simplify right side
    87,448,424.20x = 10,609,145,677,489,556
  5. Step 5: Solve for x
    x = 10,609,145,677,489,556/87,448,424.20
  6. Step 6: Final answer
    x = 121,318,889.10

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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.