Home / 193,085,128.80-289,627,693.20-131,863,125.60

Finding the Fourth Proportional to 193,085,128.80, 289,627,693.20 and 131,863,125.60

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Solution

The fourth proportional to 193,085,128.80, 289,627,693.20 and 131,863,125.60 is: 197,794,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,085,128.80 : 289,627,693.20 = 131,863,125.60 : x
  2. Step 2: Convert to fraction form
    193,085,128.80/289,627,693.20 = 131,863,125.60/x
  3. Step 3: Cross multiply
    193,085,128.80x = 289,627,693.20 × 131,863,125.60
  4. Step 4: Simplify right side
    193,085,128.80x = 38,191,212,885,669,864
  5. Step 5: Solve for x
    x = 38,191,212,885,669,864/193,085,128.80
  6. Step 6: Final answer
    x = 197,794,688.40

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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.