Home / 8,179,331.85-12,284,940.72-6,664,134.51

Finding the Fourth Proportional to 8,179,331.85, 12,284,940.72 and 6,664,134.51

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Solution

The fourth proportional to 8,179,331.85, 12,284,940.72 and 6,664,134.51 is: 10,009,191.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179,331.85 : 12,284,940.72 = 6,664,134.51 : x
  2. Step 2: Convert to fraction form
    8,179,331.85/12,284,940.72 = 6,664,134.51/x
  3. Step 3: Cross multiply
    8,179,331.85x = 12,284,940.72 × 6,664,134.51
  4. Step 4: Simplify right side
    8,179,331.85x = 81,868,497,405,456.25
  5. Step 5: Solve for x
    x = 81,868,497,405,456.25/8,179,331.85
  6. Step 6: Final answer
    x = 10,009,191.33

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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.