Home / 203,358,706.72-305,040,188.76-80,566,909

Finding the Fourth Proportional to 203,358,706.72, 305,040,188.76 and 80,566,909

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Solution

The fourth proportional to 203,358,706.72, 305,040,188.76 and 80,566,909 is: 120,851,206.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,358,706.72 : 305,040,188.76 = 80,566,909 : x
  2. Step 2: Convert to fraction form
    203,358,706.72/305,040,188.76 = 80,566,909/x
  3. Step 3: Cross multiply
    203,358,706.72x = 305,040,188.76 × 80,566,909
  4. Step 4: Simplify right side
    203,358,706.72x = 24,576,145,129,169,744
  5. Step 5: Solve for x
    x = 24,576,145,129,169,744/203,358,706.72
  6. Step 6: Final answer
    x = 120,851,206.84

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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.