Home / 278,606,550.16-418,024,380.45-123,078,274.78

Finding the Fourth Proportional to 278,606,550.16, 418,024,380.45 and 123,078,274.78

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Solution

The fourth proportional to 278,606,550.16, 418,024,380.45 and 123,078,274.78 is: 184,668,018.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,606,550.16 : 418,024,380.45 = 123,078,274.78 : x
  2. Step 2: Convert to fraction form
    278,606,550.16/418,024,380.45 = 123,078,274.78/x
  3. Step 3: Cross multiply
    278,606,550.16x = 418,024,380.45 × 123,078,274.78
  4. Step 4: Simplify right side
    278,606,550.16x = 51,449,719,561,764,360
  5. Step 5: Solve for x
    x = 51,449,719,561,764,360/278,606,550.16
  6. Step 6: Final answer
    x = 184,668,018.51

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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.