Home / 315,040,079.70-472,560,119.55-271,957,929.30

Finding the Fourth Proportional to 315,040,079.70, 472,560,119.55 and 271,957,929.30

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Solution

The fourth proportional to 315,040,079.70, 472,560,119.55 and 271,957,929.30 is: 407,936,893.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,040,079.70 : 472,560,119.55 = 271,957,929.30 : x
  2. Step 2: Convert to fraction form
    315,040,079.70/472,560,119.55 = 271,957,929.30/x
  3. Step 3: Cross multiply
    315,040,079.70x = 472,560,119.55 × 271,957,929.30
  4. Step 4: Simplify right side
    315,040,079.70x = 128,516,471,582,578,464
  5. Step 5: Solve for x
    x = 128,516,471,582,578,464/315,040,079.70
  6. Step 6: Final answer
    x = 407,936,893.95

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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.