Home / 276,419,138.92-381,205,775.62-216,076,104.86

Finding the Fourth Proportional to 276,419,138.92, 381,205,775.62 and 216,076,104.86

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Solution

The fourth proportional to 276,419,138.92, 381,205,775.62 and 216,076,104.86 is: 297,987,539.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,419,138.92 : 381,205,775.62 = 216,076,104.86 : x
  2. Step 2: Convert to fraction form
    276,419,138.92/381,205,775.62 = 216,076,104.86/x
  3. Step 3: Cross multiply
    276,419,138.92x = 381,205,775.62 × 216,076,104.86
  4. Step 4: Simplify right side
    276,419,138.92x = 82,369,459,144,738,912
  5. Step 5: Solve for x
    x = 82,369,459,144,738,912/276,419,138.92
  6. Step 6: Final answer
    x = 297,987,539.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.