Home / 280,840,581.72-421,279,356.78-73,584,067.32

Finding the Fourth Proportional to 280,840,581.72, 421,279,356.78 and 73,584,067.32

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Solution

The fourth proportional to 280,840,581.72, 421,279,356.78 and 73,584,067.32 is: 110,380,944.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,840,581.72 : 421,279,356.78 = 73,584,067.32 : x
  2. Step 2: Convert to fraction form
    280,840,581.72/421,279,356.78 = 73,584,067.32/x
  3. Step 3: Cross multiply
    280,840,581.72x = 421,279,356.78 × 73,584,067.32
  4. Step 4: Simplify right side
    280,840,581.72x = 30,999,448,549,825,812
  5. Step 5: Solve for x
    x = 30,999,448,549,825,812/280,840,581.72
  6. Step 6: Final answer
    x = 110,380,944.09

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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.