Home / 221,454,015.80-332,181,023.70-68,080,143.20

Finding the Fourth Proportional to 221,454,015.80, 332,181,023.70 and 68,080,143.20

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Solution

The fourth proportional to 221,454,015.80, 332,181,023.70 and 68,080,143.20 is: 102,120,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,454,015.80 : 332,181,023.70 = 68,080,143.20 : x
  2. Step 2: Convert to fraction form
    221,454,015.80/332,181,023.70 = 68,080,143.20/x
  3. Step 3: Cross multiply
    221,454,015.80x = 332,181,023.70 × 68,080,143.20
  4. Step 4: Simplify right side
    221,454,015.80x = 22,614,931,661,818,596
  5. Step 5: Solve for x
    x = 22,614,931,661,818,596/221,454,015.80
  6. Step 6: Final answer
    x = 102,120,214.80

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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.