Home / 263,077,687.20-394,616,530.80-81,324,573.60

Finding the Fourth Proportional to 263,077,687.20, 394,616,530.80 and 81,324,573.60

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Solution

The fourth proportional to 263,077,687.20, 394,616,530.80 and 81,324,573.60 is: 121,986,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,077,687.20 : 394,616,530.80 = 81,324,573.60 : x
  2. Step 2: Convert to fraction form
    263,077,687.20/394,616,530.80 = 81,324,573.60/x
  3. Step 3: Cross multiply
    263,077,687.20x = 394,616,530.80 × 81,324,573.60
  4. Step 4: Simplify right side
    263,077,687.20x = 32,092,021,102,821,264
  5. Step 5: Solve for x
    x = 32,092,021,102,821,264/263,077,687.20
  6. Step 6: Final answer
    x = 121,986,860.40

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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.