Home / 263,451,008.72-395,229,510.84-90,934,504.40

Finding the Fourth Proportional to 263,451,008.72, 395,229,510.84 and 90,934,504.40

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Solution

The fourth proportional to 263,451,008.72, 395,229,510.84 and 90,934,504.40 is: 136,420,049.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,451,008.72 : 395,229,510.84 = 90,934,504.40 : x
  2. Step 2: Convert to fraction form
    263,451,008.72/395,229,510.84 = 90,934,504.40/x
  3. Step 3: Cross multiply
    263,451,008.72x = 395,229,510.84 × 90,934,504.40
  4. Step 4: Simplify right side
    263,451,008.72x = 35,939,999,692,489,828
  5. Step 5: Solve for x
    x = 35,939,999,692,489,828/263,451,008.72
  6. Step 6: Final answer
    x = 136,420,049.66

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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.