Home / 220,689,940.80-331,034,911.20-196,456,231.20

Finding the Fourth Proportional to 220,689,940.80, 331,034,911.20 and 196,456,231.20

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Solution

The fourth proportional to 220,689,940.80, 331,034,911.20 and 196,456,231.20 is: 294,684,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,689,940.80 : 331,034,911.20 = 196,456,231.20 : x
  2. Step 2: Convert to fraction form
    220,689,940.80/331,034,911.20 = 196,456,231.20/x
  3. Step 3: Cross multiply
    220,689,940.80x = 331,034,911.20 × 196,456,231.20
  4. Step 4: Simplify right side
    220,689,940.80x = 65,033,871,049,978,664
  5. Step 5: Solve for x
    x = 65,033,871,049,978,664/220,689,940.80
  6. Step 6: Final answer
    x = 294,684,346.80

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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.