Home / 188,530,981.32-260,168,674.08-109,149,390

Finding the Fourth Proportional to 188,530,981.32, 260,168,674.08 and 109,149,390

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Solution

The fourth proportional to 188,530,981.32, 260,168,674.08 and 109,149,390 is: 150,623,796.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,530,981.32 : 260,168,674.08 = 109,149,390 : x
  2. Step 2: Convert to fraction form
    188,530,981.32/260,168,674.08 = 109,149,390/x
  3. Step 3: Cross multiply
    188,530,981.32x = 260,168,674.08 × 109,149,390
  4. Step 4: Simplify right side
    188,530,981.32x = 28,397,252,072,940,812
  5. Step 5: Solve for x
    x = 28,397,252,072,940,812/188,530,981.32
  6. Step 6: Final answer
    x = 150,623,796.02

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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.