Home / 6,515,396.80-8,991,487.82-3,936,579.35

Finding the Fourth Proportional to 6,515,396.80, 8,991,487.82 and 3,936,579.35

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Solution

The fourth proportional to 6,515,396.80, 8,991,487.82 and 3,936,579.35 is: 5,432,624.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515,396.80 : 8,991,487.82 = 3,936,579.35 : x
  2. Step 2: Convert to fraction form
    6,515,396.80/8,991,487.82 = 3,936,579.35/x
  3. Step 3: Cross multiply
    6,515,396.80x = 8,991,487.82 × 3,936,579.35
  4. Step 4: Simplify right side
    6,515,396.80x = 35,395,705,242,872.52
  5. Step 5: Solve for x
    x = 35,395,705,242,872.52/6,515,396.80
  6. Step 6: Final answer
    x = 5,432,624.65

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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.