Home / 12,982,763.70-19,474,145.55-5,408,745.30

Finding the Fourth Proportional to 12,982,763.70, 19,474,145.55 and 5,408,745.30

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Solution

The fourth proportional to 12,982,763.70, 19,474,145.55 and 5,408,745.30 is: 8,113,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982,763.70 : 19,474,145.55 = 5,408,745.30 : x
  2. Step 2: Convert to fraction form
    12,982,763.70/19,474,145.55 = 5,408,745.30/x
  3. Step 3: Cross multiply
    12,982,763.70x = 19,474,145.55 × 5,408,745.30
  4. Step 4: Simplify right side
    12,982,763.70x = 105,330,693,215,078.42
  5. Step 5: Solve for x
    x = 105,330,693,215,078.42/12,982,763.70
  6. Step 6: Final answer
    x = 8,113,117.95

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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.