Home / 228,389,512.55-315,169,371.84-129,268,131.14

Finding the Fourth Proportional to 228,389,512.55, 315,169,371.84 and 129,268,131.14

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Solution

The fourth proportional to 228,389,512.55, 315,169,371.84 and 129,268,131.14 is: 178,385,404.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,389,512.55 : 315,169,371.84 = 129,268,131.14 : x
  2. Step 2: Convert to fraction form
    228,389,512.55/315,169,371.84 = 129,268,131.14/x
  3. Step 3: Cross multiply
    228,389,512.55x = 315,169,371.84 × 129,268,131.14
  4. Step 4: Simplify right side
    228,389,512.55x = 40,741,355,690,324,536
  5. Step 5: Solve for x
    x = 40,741,355,690,324,536/228,389,512.55
  6. Step 6: Final answer
    x = 178,385,404.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.