Home / 12,451,453.10-18,638,872.51-8,124,185.65

Finding the Fourth Proportional to 12,451,453.10, 18,638,872.51 and 8,124,185.65

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Solution

The fourth proportional to 12,451,453.10, 18,638,872.51 and 8,124,185.65 is: 12,161,284.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451,453.10 : 18,638,872.51 = 8,124,185.65 : x
  2. Step 2: Convert to fraction form
    12,451,453.10/18,638,872.51 = 8,124,185.65/x
  3. Step 3: Cross multiply
    12,451,453.10x = 18,638,872.51 × 8,124,185.65
  4. Step 4: Simplify right side
    12,451,453.10x = 151,425,660,577,921.50
  5. Step 5: Solve for x
    x = 151,425,660,577,921.50/12,451,453.10
  6. Step 6: Final answer
    x = 12,161,284.26

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1.5x scale

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.