Home / 80,150,279.32-120,303,162.67-38,680,339.70

Finding the Fourth Proportional to 80,150,279.32, 120,303,162.67 and 38,680,339.70

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Solution

The fourth proportional to 80,150,279.32, 120,303,162.67 and 38,680,339.70 is: 58,058,028.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,150,279.32 : 120,303,162.67 = 38,680,339.70 : x
  2. Step 2: Convert to fraction form
    80,150,279.32/120,303,162.67 = 38,680,339.70/x
  3. Step 3: Cross multiply
    80,150,279.32x = 120,303,162.67 × 38,680,339.70
  4. Step 4: Simplify right side
    80,150,279.32x = 4,653,367,198,458,443
  5. Step 5: Solve for x
    x = 4,653,367,198,458,443/80,150,279.32
  6. Step 6: Final answer
    x = 58,058,028.47

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1.5x scale

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.