Home / 298,720,319.20-448,080,478.80-262,888,511.20

Finding the Fourth Proportional to 298,720,319.20, 448,080,478.80 and 262,888,511.20

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Solution

The fourth proportional to 298,720,319.20, 448,080,478.80 and 262,888,511.20 is: 394,332,766.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,720,319.20 : 448,080,478.80 = 262,888,511.20 : x
  2. Step 2: Convert to fraction form
    298,720,319.20/448,080,478.80 = 262,888,511.20/x
  3. Step 3: Cross multiply
    298,720,319.20x = 448,080,478.80 × 262,888,511.20
  4. Step 4: Simplify right side
    298,720,319.20x = 117,795,209,969,515,168
  5. Step 5: Solve for x
    x = 117,795,209,969,515,168/298,720,319.20
  6. Step 6: Final answer
    x = 394,332,766.80

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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.