Home / 125,664,910.80-188,497,366.20-86,922,861.90

Finding the Fourth Proportional to 125,664,910.80, 188,497,366.20 and 86,922,861.90

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Solution

The fourth proportional to 125,664,910.80, 188,497,366.20 and 86,922,861.90 is: 130,384,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,664,910.80 : 188,497,366.20 = 86,922,861.90 : x
  2. Step 2: Convert to fraction form
    125,664,910.80/188,497,366.20 = 86,922,861.90/x
  3. Step 3: Cross multiply
    125,664,910.80x = 188,497,366.20 × 86,922,861.90
  4. Step 4: Simplify right side
    125,664,910.80x = 16,384,730,530,716,328
  5. Step 5: Solve for x
    x = 16,384,730,530,716,328/125,664,910.80
  6. Step 6: Final answer
    x = 130,384,292.85

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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.