Home / 258,984,076.40-388,752,660.72-111,504,671.88

Finding the Fourth Proportional to 258,984,076.40, 388,752,660.72 and 111,504,671.88

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Solution

The fourth proportional to 258,984,076.40, 388,752,660.72 and 111,504,671.88 is: 167,376,073.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,984,076.40 : 388,752,660.72 = 111,504,671.88 : x
  2. Step 2: Convert to fraction form
    258,984,076.40/388,752,660.72 = 111,504,671.88/x
  3. Step 3: Cross multiply
    258,984,076.40x = 388,752,660.72 × 111,504,671.88
  4. Step 4: Simplify right side
    258,984,076.40x = 43,347,737,876,060,568
  5. Step 5: Solve for x
    x = 43,347,737,876,060,568/258,984,076.40
  6. Step 6: Final answer
    x = 167,376,073.77

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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.