Home / 13,457,428.70-20,162,086.05-8,189,674.70

Finding the Fourth Proportional to 13,457,428.70, 20,162,086.05 and 8,189,674.70

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Solution

The fourth proportional to 13,457,428.70, 20,162,086.05 and 8,189,674.70 is: 12,269,871.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,428.70 : 20,162,086.05 = 8,189,674.70 : x
  2. Step 2: Convert to fraction form
    13,457,428.70/20,162,086.05 = 8,189,674.70/x
  3. Step 3: Cross multiply
    13,457,428.70x = 20,162,086.05 × 8,189,674.70
  4. Step 4: Simplify right side
    13,457,428.70x = 165,120,926,022,907.94
  5. Step 5: Solve for x
    x = 165,120,926,022,907.94/13,457,428.70
  6. Step 6: Final answer
    x = 12,269,871.88

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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.