Home / 257,040,687.76-354,706,200.42-139,563,329.20

Finding the Fourth Proportional to 257,040,687.76, 354,706,200.42 and 139,563,329.20

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Solution

The fourth proportional to 257,040,687.76, 354,706,200.42 and 139,563,329.20 is: 192,591,992.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,040,687.76 : 354,706,200.42 = 139,563,329.20 : x
  2. Step 2: Convert to fraction form
    257,040,687.76/354,706,200.42 = 139,563,329.20/x
  3. Step 3: Cross multiply
    257,040,687.76x = 354,706,200.42 × 139,563,329.20
  4. Step 4: Simplify right side
    257,040,687.76x = 49,503,978,218,497,640
  5. Step 5: Solve for x
    x = 49,503,978,218,497,640/257,040,687.76
  6. Step 6: Final answer
    x = 192,591,992.54

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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.