Home / 80,592,459.20-120,876,879.01-39,640,906.07

Finding the Fourth Proportional to 80,592,459.20, 120,876,879.01 and 39,640,906.07

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Solution

The fourth proportional to 80,592,459.20, 120,876,879.01 and 39,640,906.07 is: 59,455,550.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,592,459.20 : 120,876,879.01 = 39,640,906.07 : x
  2. Step 2: Convert to fraction form
    80,592,459.20/120,876,879.01 = 39,640,906.07/x
  3. Step 3: Cross multiply
    80,592,459.20x = 120,876,879.01 × 39,640,906.07
  4. Step 4: Simplify right side
    80,592,459.20x = 4,791,669,007,263,033
  5. Step 5: Solve for x
    x = 4,791,669,007,263,033/80,592,459.20
  6. Step 6: Final answer
    x = 59,455,550.24

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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.