Home / 207,394,779.40-311,049,940.78-76,191,960.56

Finding the Fourth Proportional to 207,394,779.40, 311,049,940.78 and 76,191,960.56

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Solution

The fourth proportional to 207,394,779.40, 311,049,940.78 and 76,191,960.56 is: 114,272,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,394,779.40 : 311,049,940.78 = 76,191,960.56 : x
  2. Step 2: Convert to fraction form
    207,394,779.40/311,049,940.78 = 76,191,960.56/x
  3. Step 3: Cross multiply
    207,394,779.40x = 311,049,940.78 × 76,191,960.56
  4. Step 4: Simplify right side
    207,394,779.40x = 23,699,504,820,100,096
  5. Step 5: Solve for x
    x = 23,699,504,820,100,096/207,394,779.40
  6. Step 6: Final answer
    x = 114,272,427.15

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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.