Home / 819,566,205.14-1,131,004,770.65-443,222,792.87

Finding the Fourth Proportional to 819,566,205.14, 1,131,004,770.65 and 443,222,792.87

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Solution

The fourth proportional to 819,566,205.14, 1,131,004,770.65 and 443,222,792.87 is: 611,649,296.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,566,205.14 : 1,131,004,770.65 = 443,222,792.87 : x
  2. Step 2: Convert to fraction form
    819,566,205.14/1,131,004,770.65 = 443,222,792.87/x
  3. Step 3: Cross multiply
    819,566,205.14x = 1,131,004,770.65 × 443,222,792.87
  4. Step 4: Simplify right side
    819,566,205.14x = 501,287,093,191,131,840
  5. Step 5: Solve for x
    x = 501,287,093,191,131,840/819,566,205.14
  6. Step 6: Final answer
    x = 611,649,296.97

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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.