Home / 288,861,719.82-398,629,173.36-165,105,054.18

Finding the Fourth Proportional to 288,861,719.82, 398,629,173.36 and 165,105,054.18

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Solution

The fourth proportional to 288,861,719.82, 398,629,173.36 and 165,105,054.18 is: 227,844,974.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,861,719.82 : 398,629,173.36 = 165,105,054.18 : x
  2. Step 2: Convert to fraction form
    288,861,719.82/398,629,173.36 = 165,105,054.18/x
  3. Step 3: Cross multiply
    288,861,719.82x = 398,629,173.36 × 165,105,054.18
  4. Step 4: Simplify right side
    288,861,719.82x = 65,815,691,265,331,416
  5. Step 5: Solve for x
    x = 65,815,691,265,331,416/288,861,719.82
  6. Step 6: Final answer
    x = 227,844,974.77

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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.