Home / 120,760,891.20-181,141,336.80-39,981,859.20

Finding the Fourth Proportional to 120,760,891.20, 181,141,336.80 and 39,981,859.20

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Solution

The fourth proportional to 120,760,891.20, 181,141,336.80 and 39,981,859.20 is: 59,972,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,760,891.20 : 181,141,336.80 = 39,981,859.20 : x
  2. Step 2: Convert to fraction form
    120,760,891.20/181,141,336.80 = 39,981,859.20/x
  3. Step 3: Cross multiply
    120,760,891.20x = 181,141,336.80 × 39,981,859.20
  4. Step 4: Simplify right side
    120,760,891.20x = 7,242,367,423,237,380
  5. Step 5: Solve for x
    x = 7,242,367,423,237,380/120,760,891.20
  6. Step 6: Final answer
    x = 59,972,788.80

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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.