Home / 193,085,138.80-289,627,708.20-131,863,135.60

Finding the Fourth Proportional to 193,085,138.80, 289,627,708.20 and 131,863,135.60

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Solution

The fourth proportional to 193,085,138.80, 289,627,708.20 and 131,863,135.60 is: 197,794,703.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,085,138.80 : 289,627,708.20 = 131,863,135.60 : x
  2. Step 2: Convert to fraction form
    193,085,138.80/289,627,708.20 = 131,863,135.60/x
  3. Step 3: Cross multiply
    193,085,138.80x = 289,627,708.20 × 131,863,135.60
  4. Step 4: Simplify right side
    193,085,138.80x = 38,191,217,759,893,832
  5. Step 5: Solve for x
    x = 38,191,217,759,893,832/193,085,138.80
  6. Step 6: Final answer
    x = 197,794,703.40

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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.