Home / 13,280,408.24-19,905,500.78-8,081,551.61

Finding the Fourth Proportional to 13,280,408.24, 19,905,500.78 and 8,081,551.61

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Solution

The fourth proportional to 13,280,408.24, 19,905,500.78 and 8,081,551.61 is: 12,113,131.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,408.24 : 19,905,500.78 = 8,081,551.61 : x
  2. Step 2: Convert to fraction form
    13,280,408.24/19,905,500.78 = 8,081,551.61/x
  3. Step 3: Cross multiply
    13,280,408.24x = 19,905,500.78 × 8,081,551.61
  4. Step 4: Simplify right side
    13,280,408.24x = 160,867,331,736,530
  5. Step 5: Solve for x
    x = 160,867,331,736,530/13,280,408.24
  6. Step 6: Final answer
    x = 12,113,131.53

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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.