Home / 12,451,451.10-18,638,869.52-8,124,183.65

Finding the Fourth Proportional to 12,451,451.10, 18,638,869.52 and 8,124,183.65

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Solution

The fourth proportional to 12,451,451.10, 18,638,869.52 and 8,124,183.65 is: 12,161,281.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451,451.10 : 18,638,869.52 = 8,124,183.65 : x
  2. Step 2: Convert to fraction form
    12,451,451.10/18,638,869.52 = 8,124,183.65/x
  3. Step 3: Cross multiply
    12,451,451.10x = 18,638,869.52 × 8,124,183.65
  4. Step 4: Simplify right side
    12,451,451.10x = 151,425,598,875,052.09
  5. Step 5: Solve for x
    x = 151,425,598,875,052.09/12,451,451.10
  6. Step 6: Final answer
    x = 12,161,281.26

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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.