Home / 83,289,108.20-115,158,375.68-72,946,183.77

Finding the Fourth Proportional to 83,289,108.20, 115,158,375.68 and 72,946,183.77

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Solution

The fourth proportional to 83,289,108.20, 115,158,375.68 and 72,946,183.77 is: 100,857,893.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,289,108.20 : 115,158,375.68 = 72,946,183.77 : x
  2. Step 2: Convert to fraction form
    83,289,108.20/115,158,375.68 = 72,946,183.77/x
  3. Step 3: Cross multiply
    83,289,108.20x = 115,158,375.68 × 72,946,183.77
  4. Step 4: Simplify right side
    83,289,108.20x = 8,400,364,034,643,247
  5. Step 5: Solve for x
    x = 8,400,364,034,643,247/83,289,108.20
  6. Step 6: Final answer
    x = 100,857,893.87

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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.