Home / 122,166,919.20-183,250,378.80-100,643,558.70

Finding the Fourth Proportional to 122,166,919.20, 183,250,378.80 and 100,643,558.70

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Solution

The fourth proportional to 122,166,919.20, 183,250,378.80 and 100,643,558.70 is: 150,965,338.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,166,919.20 : 183,250,378.80 = 100,643,558.70 : x
  2. Step 2: Convert to fraction form
    122,166,919.20/183,250,378.80 = 100,643,558.70/x
  3. Step 3: Cross multiply
    122,166,919.20x = 183,250,378.80 × 100,643,558.70
  4. Step 4: Simplify right side
    122,166,919.20x = 18,442,970,255,555,036
  5. Step 5: Solve for x
    x = 18,442,970,255,555,036/122,166,919.20
  6. Step 6: Final answer
    x = 150,965,338.05

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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.