Home / 13,457,423.70-20,162,078.55-8,189,669.70

Finding the Fourth Proportional to 13,457,423.70, 20,162,078.55 and 8,189,669.70

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Solution

The fourth proportional to 13,457,423.70, 20,162,078.55 and 8,189,669.70 is: 12,269,864.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,423.70 : 20,162,078.55 = 8,189,669.70 : x
  2. Step 2: Convert to fraction form
    13,457,423.70/20,162,078.55 = 8,189,669.70/x
  3. Step 3: Cross multiply
    13,457,423.70x = 20,162,078.55 × 8,189,669.70
  4. Step 4: Simplify right side
    13,457,423.70x = 165,120,763,789,954.94
  5. Step 5: Solve for x
    x = 165,120,763,789,954.94/13,457,423.70
  6. Step 6: Final answer
    x = 12,269,864.39

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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.