Home / 455,825,126.75-628,990,247.46-252,108,108.85

Finding the Fourth Proportional to 455,825,126.75, 628,990,247.46 and 252,108,108.85

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Solution

The fourth proportional to 455,825,126.75, 628,990,247.46 and 252,108,108.85 is: 347,882,405.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,825,126.75 : 628,990,247.46 = 252,108,108.85 : x
  2. Step 2: Convert to fraction form
    455,825,126.75/628,990,247.46 = 252,108,108.85/x
  3. Step 3: Cross multiply
    455,825,126.75x = 628,990,247.46 × 252,108,108.85
  4. Step 4: Simplify right side
    455,825,126.75x = 158,573,541,770,661,632
  5. Step 5: Solve for x
    x = 158,573,541,770,661,632/455,825,126.75
  6. Step 6: Final answer
    x = 347,882,405.92

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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.