Home / 399,447,218,009.78-599,110,287,213.29-108,714,469,531.88

Finding the Fourth Proportional to 399,447,218,009.78, 599,110,287,213.29 and 108,714,469,531.88

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Solution

The fourth proportional to 399,447,218,009.78, 599,110,287,213.29 and 108,714,469,531.88 is: 163,055,227,646.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,447,218,009.78 : 599,110,287,213.29 = 108,714,469,531.88 : x
  2. Step 2: Convert to fraction form
    399,447,218,009.78/599,110,287,213.29 = 108,714,469,531.88/x
  3. Step 3: Cross multiply
    399,447,218,009.78x = 599,110,287,213.29 × 108,714,469,531.88
  4. Step 4: Simplify right side
    399,447,218,009.78x = 65,131,957,065,485,100,515,328
  5. Step 5: Solve for x
    x = 65,131,957,065,485,100,515,328/399,447,218,009.78
  6. Step 6: Final answer
    x = 163,055,227,646.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.