Home / 258,764,761.22-388,268,350.86-127,535,498.80

Finding the Fourth Proportional to 258,764,761.22, 388,268,350.86 and 127,535,498.80

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Solution

The fourth proportional to 258,764,761.22, 388,268,350.86 and 127,535,498.80 is: 191,362,987.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,764,761.22 : 388,268,350.86 = 127,535,498.80 : x
  2. Step 2: Convert to fraction form
    258,764,761.22/388,268,350.86 = 127,535,498.80/x
  3. Step 3: Cross multiply
    258,764,761.22x = 388,268,350.86 × 127,535,498.80
  4. Step 4: Simplify right side
    258,764,761.22x = 49,517,997,794,691,096
  5. Step 5: Solve for x
    x = 49,517,997,794,691,096/258,764,761.22
  6. Step 6: Final answer
    x = 191,362,987.61

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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.