Home / 315,040,370.20-472,560,555.30-271,958,219.80

Finding the Fourth Proportional to 315,040,370.20, 472,560,555.30 and 271,958,219.80

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Solution

The fourth proportional to 315,040,370.20, 472,560,555.30 and 271,958,219.80 is: 407,937,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,040,370.20 : 472,560,555.30 = 271,958,219.80 : x
  2. Step 2: Convert to fraction form
    315,040,370.20/472,560,555.30 = 271,958,219.80/x
  3. Step 3: Cross multiply
    315,040,370.20x = 472,560,555.30 × 271,958,219.80
  4. Step 4: Simplify right side
    315,040,370.20x = 128,516,727,367,087,456
  5. Step 5: Solve for x
    x = 128,516,727,367,087,456/315,040,370.20
  6. Step 6: Final answer
    x = 407,937,329.70

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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.