Home / 192,560,778.88-288,979,076.94-81,973,981.60

Finding the Fourth Proportional to 192,560,778.88, 288,979,076.94 and 81,973,981.60

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Solution

The fourth proportional to 192,560,778.88, 288,979,076.94 and 81,973,981.60 is: 123,019,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,560,778.88 : 288,979,076.94 = 81,973,981.60 : x
  2. Step 2: Convert to fraction form
    192,560,778.88/288,979,076.94 = 81,973,981.60/x
  3. Step 3: Cross multiply
    192,560,778.88x = 288,979,076.94 × 81,973,981.60
  4. Step 4: Simplify right side
    192,560,778.88x = 23,688,765,535,864,544
  5. Step 5: Solve for x
    x = 23,688,765,535,864,544/192,560,778.88
  6. Step 6: Final answer
    x = 123,019,680.71

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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.