Home / 203,542,851.80-305,443,413.35-86,959,086.13

Finding the Fourth Proportional to 203,542,851.80, 305,443,413.35 and 86,959,086.13

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Solution

The fourth proportional to 203,542,851.80, 305,443,413.35 and 86,959,086.13 is: 130,493,799.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,542,851.80 : 305,443,413.35 = 86,959,086.13 : x
  2. Step 2: Convert to fraction form
    203,542,851.80/305,443,413.35 = 86,959,086.13/x
  3. Step 3: Cross multiply
    203,542,851.80x = 305,443,413.35 × 86,959,086.13
  4. Step 4: Simplify right side
    203,542,851.80x = 26,561,080,089,890,052
  5. Step 5: Solve for x
    x = 26,561,080,089,890,052/203,542,851.80
  6. Step 6: Final answer
    x = 130,493,799.49

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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.