Home / 28,979,825.80-43,469,738.70-18,902,129.80

Finding the Fourth Proportional to 28,979,825.80, 43,469,738.70 and 18,902,129.80

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Solution

The fourth proportional to 28,979,825.80, 43,469,738.70 and 18,902,129.80 is: 28,353,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,979,825.80 : 43,469,738.70 = 18,902,129.80 : x
  2. Step 2: Convert to fraction form
    28,979,825.80/43,469,738.70 = 18,902,129.80/x
  3. Step 3: Cross multiply
    28,979,825.80x = 43,469,738.70 × 18,902,129.80
  4. Step 4: Simplify right side
    28,979,825.80x = 821,670,643,279,483.38
  5. Step 5: Solve for x
    x = 821,670,643,279,483.38/28,979,825.80
  6. Step 6: Final answer
    x = 28,353,194.70

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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.