Home / 13,457,466.70-20,162,143.05-8,189,712.70

Finding the Fourth Proportional to 13,457,466.70, 20,162,143.05 and 8,189,712.70

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Solution

The fourth proportional to 13,457,466.70, 20,162,143.05 and 8,189,712.70 is: 12,269,928.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,466.70 : 20,162,143.05 = 8,189,712.70 : x
  2. Step 2: Convert to fraction form
    13,457,466.70/20,162,143.05 = 8,189,712.70/x
  3. Step 3: Cross multiply
    13,457,466.70x = 20,162,143.05 × 8,189,712.70
  4. Step 4: Simplify right side
    13,457,466.70x = 165,122,158,995,801.75
  5. Step 5: Solve for x
    x = 165,122,158,995,801.75/13,457,466.70
  6. Step 6: Final answer
    x = 12,269,928.86

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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.