Home / 819,566,205.38-1,131,004,770.99-443,222,793.11

Finding the Fourth Proportional to 819,566,205.38, 1,131,004,770.99 and 443,222,793.11

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Solution

The fourth proportional to 819,566,205.38, 1,131,004,770.99 and 443,222,793.11 is: 611,649,297.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,566,205.38 : 1,131,004,770.99 = 443,222,793.11 : x
  2. Step 2: Convert to fraction form
    819,566,205.38/1,131,004,770.99 = 443,222,793.11/x
  3. Step 3: Cross multiply
    819,566,205.38x = 1,131,004,770.99 × 443,222,793.11
  4. Step 4: Simplify right side
    819,566,205.38x = 501,287,093,621,751,232
  5. Step 5: Solve for x
    x = 501,287,093,621,751,232/819,566,205.38
  6. Step 6: Final answer
    x = 611,649,297.31

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Double scale
Find fourth proportional to 819,566,206.38, 1,131,004,772.37 and 443,222,794.11
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.