Home / 288,861,728.37-398,629,185.19-165,105,062.70

Finding the Fourth Proportional to 288,861,728.37, 398,629,185.19 and 165,105,062.70

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Solution

The fourth proportional to 288,861,728.37, 398,629,185.19 and 165,105,062.70 is: 227,844,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,861,728.37 : 398,629,185.19 = 165,105,062.70 : x
  2. Step 2: Convert to fraction form
    288,861,728.37/398,629,185.19 = 165,105,062.70/x
  3. Step 3: Cross multiply
    288,861,728.37x = 398,629,185.19 × 165,105,062.70
  4. Step 4: Simplify right side
    288,861,728.37x = 65,815,696,612,026,184
  5. Step 5: Solve for x
    x = 65,815,696,612,026,184/288,861,728.37
  6. Step 6: Final answer
    x = 227,844,986.54

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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.