Home / 315,046,035.54-472,565,251.97-81,856,113.52

Finding the Fourth Proportional to 315,046,035.54, 472,565,251.97 and 81,856,113.52

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Solution

The fourth proportional to 315,046,035.54, 472,565,251.97 and 81,856,113.52 is: 122,783,182.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,046,035.54 : 472,565,251.97 = 81,856,113.52 : x
  2. Step 2: Convert to fraction form
    315,046,035.54/472,565,251.97 = 81,856,113.52/x
  3. Step 3: Cross multiply
    315,046,035.54x = 472,565,251.97 × 81,856,113.52
  4. Step 4: Simplify right side
    315,046,035.54x = 38,682,354,910,863,728
  5. Step 5: Solve for x
    x = 38,682,354,910,863,728/315,046,035.54
  6. Step 6: Final answer
    x = 122,783,182.61

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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.