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Finding the Fourth Proportional to 273,213,758.45, 377,037,978.06 and 149,454,436.79

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Solution

The fourth proportional to 273,213,758.45, 377,037,978.06 and 149,454,436.79 is: 206,248,759.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,213,758.45 : 377,037,978.06 = 149,454,436.79 : x
  2. Step 2: Convert to fraction form
    273,213,758.45/377,037,978.06 = 149,454,436.79/x
  3. Step 3: Cross multiply
    273,213,758.45x = 377,037,978.06 × 149,454,436.79
  4. Step 4: Simplify right side
    273,213,758.45x = 56,349,998,659,397,672
  5. Step 5: Solve for x
    x = 56,349,998,659,397,672/273,213,758.45
  6. Step 6: Final answer
    x = 206,248,759.14

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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.