Home / 143,508,121.96-198,047,647.70-80,805,782.20

Finding the Fourth Proportional to 143,508,121.96, 198,047,647.70 and 80,805,782.20

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Solution

The fourth proportional to 143,508,121.96, 198,047,647.70 and 80,805,782.20 is: 111,515,605.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,508,121.96 : 198,047,647.70 = 80,805,782.20 : x
  2. Step 2: Convert to fraction form
    143,508,121.96/198,047,647.70 = 80,805,782.20/x
  3. Step 3: Cross multiply
    143,508,121.96x = 198,047,647.70 × 80,805,782.20
  4. Step 4: Simplify right side
    143,508,121.96x = 16,003,395,085,268,530
  5. Step 5: Solve for x
    x = 16,003,395,085,268,530/143,508,121.96
  6. Step 6: Final answer
    x = 111,515,605.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.