Home / 18,883,129.35-28,324,694.03-12,491,887.03

Finding the Fourth Proportional to 18,883,129.35, 28,324,694.03 and 12,491,887.03

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Solution

The fourth proportional to 18,883,129.35, 28,324,694.03 and 12,491,887.03 is: 18,737,830.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,883,129.35 : 28,324,694.03 = 12,491,887.03 : x
  2. Step 2: Convert to fraction form
    18,883,129.35/28,324,694.03 = 12,491,887.03/x
  3. Step 3: Cross multiply
    18,883,129.35x = 28,324,694.03 × 12,491,887.03
  4. Step 4: Simplify right side
    18,883,129.35x = 353,828,877,919,071.12
  5. Step 5: Solve for x
    x = 353,828,877,919,071.12/18,883,129.35
  6. Step 6: Final answer
    x = 18,737,830.54

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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.