Home / 13,408,471.49-18,504,299.95-7,902,078.73

Finding the Fourth Proportional to 13,408,471.49, 18,504,299.95 and 7,902,078.73

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Solution

The fourth proportional to 13,408,471.49, 18,504,299.95 and 7,902,078.73 is: 10,905,227.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408,471.49 : 18,504,299.95 = 7,902,078.73 : x
  2. Step 2: Convert to fraction form
    13,408,471.49/18,504,299.95 = 7,902,078.73/x
  3. Step 3: Cross multiply
    13,408,471.49x = 18,504,299.95 × 7,902,078.73
  4. Step 4: Simplify right side
    13,408,471.49x = 146,222,434,982,419.12
  5. Step 5: Solve for x
    x = 146,222,434,982,419.12/13,408,471.49
  6. Step 6: Final answer
    x = 10,905,227.72

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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.