Home / 315,040,809.20-472,561,213.80-271,958,658.80

Finding the Fourth Proportional to 315,040,809.20, 472,561,213.80 and 271,958,658.80

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Solution

The fourth proportional to 315,040,809.20, 472,561,213.80 and 271,958,658.80 is: 407,937,988.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,040,809.20 : 472,561,213.80 = 271,958,658.80 : x
  2. Step 2: Convert to fraction form
    315,040,809.20/472,561,213.80 = 271,958,658.80/x
  3. Step 3: Cross multiply
    315,040,809.20x = 472,561,213.80 × 271,958,658.80
  4. Step 4: Simplify right side
    315,040,809.20x = 128,517,113,905,948,064
  5. Step 5: Solve for x
    x = 128,517,113,905,948,064/315,040,809.20
  6. Step 6: Final answer
    x = 407,937,988.20

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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.