Home / 263,075,139.20-394,612,708.80-68,986,179.20

Finding the Fourth Proportional to 263,075,139.20, 394,612,708.80 and 68,986,179.20

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Solution

The fourth proportional to 263,075,139.20, 394,612,708.80 and 68,986,179.20 is: 103,479,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,075,139.20 : 394,612,708.80 = 68,986,179.20 : x
  2. Step 2: Convert to fraction form
    263,075,139.20/394,612,708.80 = 68,986,179.20/x
  3. Step 3: Cross multiply
    263,075,139.20x = 394,612,708.80 × 68,986,179.20
  4. Step 4: Simplify right side
    263,075,139.20x = 27,222,823,043,874,220
  5. Step 5: Solve for x
    x = 27,222,823,043,874,220/263,075,139.20
  6. Step 6: Final answer
    x = 103,479,268.80

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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.