Home / 80,255,867.80-120,345,879.76-31,094,751.76

Finding the Fourth Proportional to 80,255,867.80, 120,345,879.76 and 31,094,751.76

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Solution

The fourth proportional to 80,255,867.80, 120,345,879.76 and 31,094,751.76 is: 46,627,434.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,255,867.80 : 120,345,879.76 = 31,094,751.76 : x
  2. Step 2: Convert to fraction form
    80,255,867.80/120,345,879.76 = 31,094,751.76/x
  3. Step 3: Cross multiply
    80,255,867.80x = 120,345,879.76 × 31,094,751.76
  4. Step 4: Simplify right side
    80,255,867.80x = 3,742,125,256,476,008.50
  5. Step 5: Solve for x
    x = 3,742,125,256,476,008.50/80,255,867.80
  6. Step 6: Final answer
    x = 46,627,434.97

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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.