Home / 490,107,342.20-734,265,218.10-398,736,231.80

Finding the Fourth Proportional to 490,107,342.20, 734,265,218.10 and 398,736,231.80

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Solution

The fourth proportional to 490,107,342.20, 734,265,218.10 and 398,736,231.80 is: 597,375,556.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,107,342.20 : 734,265,218.10 = 398,736,231.80 : x
  2. Step 2: Convert to fraction form
    490,107,342.20/734,265,218.10 = 398,736,231.80/x
  3. Step 3: Cross multiply
    490,107,342.20x = 734,265,218.10 × 398,736,231.80
  4. Step 4: Simplify right side
    490,107,342.20x = 292,778,146,206,999,168
  5. Step 5: Solve for x
    x = 292,778,146,206,999,168/490,107,342.20
  6. Step 6: Final answer
    x = 597,375,556.33

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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.