Home / 203,542,852.05-305,443,413.72-86,959,086.38

Finding the Fourth Proportional to 203,542,852.05, 305,443,413.72 and 86,959,086.38

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Solution

The fourth proportional to 203,542,852.05, 305,443,413.72 and 86,959,086.38 is: 130,493,799.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,542,852.05 : 305,443,413.72 = 86,959,086.38 : x
  2. Step 2: Convert to fraction form
    203,542,852.05/305,443,413.72 = 86,959,086.38/x
  3. Step 3: Cross multiply
    203,542,852.05x = 305,443,413.72 × 86,959,086.38
  4. Step 4: Simplify right side
    203,542,852.05x = 26,561,080,198,860,564
  5. Step 5: Solve for x
    x = 26,561,080,198,860,564/203,542,852.05
  6. Step 6: Final answer
    x = 130,493,799.86

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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.