Home / 28,728,015.70-43,092,023.55-17,978,473.30

Finding the Fourth Proportional to 28,728,015.70, 43,092,023.55 and 17,978,473.30

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Solution

The fourth proportional to 28,728,015.70, 43,092,023.55 and 17,978,473.30 is: 26,967,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728,015.70 : 43,092,023.55 = 17,978,473.30 : x
  2. Step 2: Convert to fraction form
    28,728,015.70/43,092,023.55 = 17,978,473.30/x
  3. Step 3: Cross multiply
    28,728,015.70x = 43,092,023.55 × 17,978,473.30
  4. Step 4: Simplify right side
    28,728,015.70x = 774,728,794,836,646.25
  5. Step 5: Solve for x
    x = 774,728,794,836,646.25/28,728,015.70
  6. Step 6: Final answer
    x = 26,967,709.95

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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.