Home / 220,128,556.80-330,192,835.20-90,669,529.20

Finding the Fourth Proportional to 220,128,556.80, 330,192,835.20 and 90,669,529.20

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Solution

The fourth proportional to 220,128,556.80, 330,192,835.20 and 90,669,529.20 is: 136,004,293.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,128,556.80 : 330,192,835.20 = 90,669,529.20 : x
  2. Step 2: Convert to fraction form
    220,128,556.80/330,192,835.20 = 90,669,529.20/x
  3. Step 3: Cross multiply
    220,128,556.80x = 330,192,835.20 × 90,669,529.20
  4. Step 4: Simplify right side
    220,128,556.80x = 29,938,428,912,797,188
  5. Step 5: Solve for x
    x = 29,938,428,912,797,188/220,128,556.80
  6. Step 6: Final answer
    x = 136,004,293.80

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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.