Home / 6,420,231.80-9,631,773.30-2,160,279.80

Finding the Fourth Proportional to 6,420,231.80, 9,631,773.30 and 2,160,279.80

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Solution

The fourth proportional to 6,420,231.80, 9,631,773.30 and 2,160,279.80 is: 3,240,899.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,231.80 : 9,631,773.30 = 2,160,279.80 : x
  2. Step 2: Convert to fraction form
    6,420,231.80/9,631,773.30 = 2,160,279.80/x
  3. Step 3: Cross multiply
    6,420,231.80x = 9,631,773.30 × 2,160,279.80
  4. Step 4: Simplify right side
    6,420,231.80x = 20,807,325,298,169.34
  5. Step 5: Solve for x
    x = 20,807,325,298,169.34/6,420,231.80
  6. Step 6: Final answer
    x = 3,240,899.39

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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.