Home / 207,394,778.40-311,049,939.28-76,191,959.56

Finding the Fourth Proportional to 207,394,778.40, 311,049,939.28 and 76,191,959.56

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Solution

The fourth proportional to 207,394,778.40, 311,049,939.28 and 76,191,959.56 is: 114,272,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,394,778.40 : 311,049,939.28 = 76,191,959.56 : x
  2. Step 2: Convert to fraction form
    207,394,778.40/311,049,939.28 = 76,191,959.56/x
  3. Step 3: Cross multiply
    207,394,778.40x = 311,049,939.28 × 76,191,959.56
  4. Step 4: Simplify right side
    207,394,778.40x = 23,699,504,394,762,216
  5. Step 5: Solve for x
    x = 23,699,504,394,762,216/207,394,778.40
  6. Step 6: Final answer
    x = 114,272,425.65

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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.