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Finding the Fourth Proportional to 279,764,562.40, 419,646,843.60 and 262,744,453.60

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Solution

The fourth proportional to 279,764,562.40, 419,646,843.60 and 262,744,453.60 is: 394,116,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,764,562.40 : 419,646,843.60 = 262,744,453.60 : x
  2. Step 2: Convert to fraction form
    279,764,562.40/419,646,843.60 = 262,744,453.60/x
  3. Step 3: Cross multiply
    279,764,562.40x = 419,646,843.60 × 262,744,453.60
  4. Step 4: Simplify right side
    279,764,562.40x = 110,259,880,626,646,656
  5. Step 5: Solve for x
    x = 110,259,880,626,646,656/279,764,562.40
  6. Step 6: Final answer
    x = 394,116,680.40

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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.