Home / 28,728,014.20-43,092,021.30-17,978,471.80

Finding the Fourth Proportional to 28,728,014.20, 43,092,021.30 and 17,978,471.80

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Solution

The fourth proportional to 28,728,014.20, 43,092,021.30 and 17,978,471.80 is: 26,967,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728,014.20 : 43,092,021.30 = 17,978,471.80 : x
  2. Step 2: Convert to fraction form
    28,728,014.20/43,092,021.30 = 17,978,471.80/x
  3. Step 3: Cross multiply
    28,728,014.20x = 43,092,021.30 × 17,978,471.80
  4. Step 4: Simplify right side
    28,728,014.20x = 774,728,689,747,049.38
  5. Step 5: Solve for x
    x = 774,728,689,747,049.38/28,728,014.20
  6. Step 6: Final answer
    x = 26,967,707.70

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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.