Home / 129,491,837.20-194,237,755.80-123,519,869.20

Finding the Fourth Proportional to 129,491,837.20, 194,237,755.80 and 123,519,869.20

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Solution

The fourth proportional to 129,491,837.20, 194,237,755.80 and 123,519,869.20 is: 185,279,803.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,491,837.20 : 194,237,755.80 = 123,519,869.20 : x
  2. Step 2: Convert to fraction form
    129,491,837.20/194,237,755.80 = 123,519,869.20/x
  3. Step 3: Cross multiply
    129,491,837.20x = 194,237,755.80 × 123,519,869.20
  4. Step 4: Simplify right side
    129,491,837.20x = 23,992,222,190,117,544
  5. Step 5: Solve for x
    x = 23,992,222,190,117,544/129,491,837.20
  6. Step 6: Final answer
    x = 185,279,803.80

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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.