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Finding the Fourth Proportional to 18,100,489.28, 24,978,455.04 and 13,474,940.48

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Solution

The fourth proportional to 18,100,489.28, 24,978,455.04 and 13,474,940.48 is: 18,595,253.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100,489.28 : 24,978,455.04 = 13,474,940.48 : x
  2. Step 2: Convert to fraction form
    18,100,489.28/24,978,455.04 = 13,474,940.48/x
  3. Step 3: Cross multiply
    18,100,489.28x = 24,978,455.04 × 13,474,940.48
  4. Step 4: Simplify right side
    18,100,489.28x = 336,583,194,946,356
  5. Step 5: Solve for x
    x = 336,583,194,946,356/18,100,489.28
  6. Step 6: Final answer
    x = 18,595,253.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.