Home / 139,968,273.20-209,952,409.80-131,010,321.20

Finding the Fourth Proportional to 139,968,273.20, 209,952,409.80 and 131,010,321.20

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Solution

The fourth proportional to 139,968,273.20, 209,952,409.80 and 131,010,321.20 is: 196,515,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,273.20 : 209,952,409.80 = 131,010,321.20 : x
  2. Step 2: Convert to fraction form
    139,968,273.20/209,952,409.80 = 131,010,321.20/x
  3. Step 3: Cross multiply
    139,968,273.20x = 209,952,409.80 × 131,010,321.20
  4. Step 4: Simplify right side
    139,968,273.20x = 27,505,932,644,612,028
  5. Step 5: Solve for x
    x = 27,505,932,644,612,028/139,968,273.20
  6. Step 6: Final answer
    x = 196,515,481.80

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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.