Home / 278,606,549.16-418,024,378.95-123,078,273.78

Finding the Fourth Proportional to 278,606,549.16, 418,024,378.95 and 123,078,273.78

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Solution

The fourth proportional to 278,606,549.16, 418,024,378.95 and 123,078,273.78 is: 184,668,017.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,606,549.16 : 418,024,378.95 = 123,078,273.78 : x
  2. Step 2: Convert to fraction form
    278,606,549.16/418,024,378.95 = 123,078,273.78/x
  3. Step 3: Cross multiply
    278,606,549.16x = 418,024,378.95 × 123,078,273.78
  4. Step 4: Simplify right side
    278,606,549.16x = 51,449,718,959,122,568
  5. Step 5: Solve for x
    x = 51,449,718,959,122,568/278,606,549.16
  6. Step 6: Final answer
    x = 184,668,017.01

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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.