Home / 393,503,940.20-590,255,910.30-120,888,266.60

Finding the Fourth Proportional to 393,503,940.20, 590,255,910.30 and 120,888,266.60

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Solution

The fourth proportional to 393,503,940.20, 590,255,910.30 and 120,888,266.60 is: 181,332,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,503,940.20 : 590,255,910.30 = 120,888,266.60 : x
  2. Step 2: Convert to fraction form
    393,503,940.20/590,255,910.30 = 120,888,266.60/x
  3. Step 3: Cross multiply
    393,503,940.20x = 590,255,910.30 × 120,888,266.60
  4. Step 4: Simplify right side
    393,503,940.20x = 71,355,013,846,572,080
  5. Step 5: Solve for x
    x = 71,355,013,846,572,080/393,503,940.20
  6. Step 6: Final answer
    x = 181,332,399.90

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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.