Home / 288,861,720.58-398,629,174.39-165,105,054.91

Finding the Fourth Proportional to 288,861,720.58, 398,629,174.39 and 165,105,054.91

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Solution

The fourth proportional to 288,861,720.58, 398,629,174.39 and 165,105,054.91 is: 227,844,975.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,861,720.58 : 398,629,174.39 = 165,105,054.91 : x
  2. Step 2: Convert to fraction form
    288,861,720.58/398,629,174.39 = 165,105,054.91/x
  3. Step 3: Cross multiply
    288,861,720.58x = 398,629,174.39 × 165,105,054.91
  4. Step 4: Simplify right side
    288,861,720.58x = 65,815,691,726,388,912
  5. Step 5: Solve for x
    x = 65,815,691,726,388,912/288,861,720.58
  6. Step 6: Final answer
    x = 227,844,975.77

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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.