Home / 278,606,550.66-418,024,381.20-123,078,275.28

Finding the Fourth Proportional to 278,606,550.66, 418,024,381.20 and 123,078,275.28

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Solution

The fourth proportional to 278,606,550.66, 418,024,381.20 and 123,078,275.28 is: 184,668,019.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,606,550.66 : 418,024,381.20 = 123,078,275.28 : x
  2. Step 2: Convert to fraction form
    278,606,550.66/418,024,381.20 = 123,078,275.28/x
  3. Step 3: Cross multiply
    278,606,550.66x = 418,024,381.20 × 123,078,275.28
  4. Step 4: Simplify right side
    278,606,550.66x = 51,449,719,863,085,256
  5. Step 5: Solve for x
    x = 51,449,719,863,085,256/278,606,550.66
  6. Step 6: Final answer
    x = 184,668,019.26

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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.