Home / 315,040,120.20-472,560,180.30-271,957,969.80

Finding the Fourth Proportional to 315,040,120.20, 472,560,180.30 and 271,957,969.80

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Solution

The fourth proportional to 315,040,120.20, 472,560,180.30 and 271,957,969.80 is: 407,936,954.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,040,120.20 : 472,560,180.30 = 271,957,969.80 : x
  2. Step 2: Convert to fraction form
    315,040,120.20/472,560,180.30 = 271,957,969.80/x
  3. Step 3: Cross multiply
    315,040,120.20x = 472,560,180.30 × 271,957,969.80
  4. Step 4: Simplify right side
    315,040,120.20x = 128,516,507,242,709,968
  5. Step 5: Solve for x
    x = 128,516,507,242,709,968/315,040,120.20
  6. Step 6: Final answer
    x = 407,936,954.70

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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.