Home / 12,188,872.28-16,820,832.12-6,682,774.16

Finding the Fourth Proportional to 12,188,872.28, 16,820,832.12 and 6,682,774.16

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Solution

The fourth proportional to 12,188,872.28, 16,820,832.12 and 6,682,774.16 is: 9,222,331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188,872.28 : 16,820,832.12 = 6,682,774.16 : x
  2. Step 2: Convert to fraction form
    12,188,872.28/16,820,832.12 = 6,682,774.16/x
  3. Step 3: Cross multiply
    12,188,872.28x = 16,820,832.12 × 6,682,774.16
  4. Step 4: Simplify right side
    12,188,872.28x = 112,409,822,241,234.03
  5. Step 5: Solve for x
    x = 112,409,822,241,234.03/12,188,872.28
  6. Step 6: Final answer
    x = 9,222,331.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.