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Finding the Fourth Proportional to 414,080,640.80, 620,593,456.80 and 220,084,992.80

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Solution

The fourth proportional to 414,080,640.80, 620,593,456.80 and 220,084,992.80 is: 329,847,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,080,640.80 : 620,593,456.80 = 220,084,992.80 : x
  2. Step 2: Convert to fraction form
    414,080,640.80/620,593,456.80 = 220,084,992.80/x
  3. Step 3: Cross multiply
    414,080,640.80x = 620,593,456.80 × 220,084,992.80
  4. Step 4: Simplify right side
    414,080,640.80x = 136,583,306,471,555,104
  5. Step 5: Solve for x
    x = 136,583,306,471,555,104/414,080,640.80
  6. Step 6: Final answer
    x = 329,847,119.17

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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.