Home / 80,876,720.80-121,315,081.20-26,289,200.80

Finding the Fourth Proportional to 80,876,720.80, 121,315,081.20 and 26,289,200.80

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Solution

The fourth proportional to 80,876,720.80, 121,315,081.20 and 26,289,200.80 is: 39,433,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,876,720.80 : 121,315,081.20 = 26,289,200.80 : x
  2. Step 2: Convert to fraction form
    80,876,720.80/121,315,081.20 = 26,289,200.80/x
  3. Step 3: Cross multiply
    80,876,720.80x = 121,315,081.20 × 26,289,200.80
  4. Step 4: Simplify right side
    80,876,720.80x = 3,189,276,529,735,105
  5. Step 5: Solve for x
    x = 3,189,276,529,735,105/80,876,720.80
  6. Step 6: Final answer
    x = 39,433,801.20

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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.