Home / 315,040,419.20-472,560,628.80-271,958,268.80

Finding the Fourth Proportional to 315,040,419.20, 472,560,628.80 and 271,958,268.80

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Solution

The fourth proportional to 315,040,419.20, 472,560,628.80 and 271,958,268.80 is: 407,937,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,040,419.20 : 472,560,628.80 = 271,958,268.80 : x
  2. Step 2: Convert to fraction form
    315,040,419.20/472,560,628.80 = 271,958,268.80/x
  3. Step 3: Cross multiply
    315,040,419.20x = 472,560,628.80 × 271,958,268.80
  4. Step 4: Simplify right side
    315,040,419.20x = 128,516,770,511,487,424
  5. Step 5: Solve for x
    x = 128,516,770,511,487,424/315,040,419.20
  6. Step 6: Final answer
    x = 407,937,403.20

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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.