Home / 11,478,171.20-15,840,592.32-6,321,531.44

Finding the Fourth Proportional to 11,478,171.20, 15,840,592.32 and 6,321,531.44

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Solution

The fourth proportional to 11,478,171.20, 15,840,592.32 and 6,321,531.44 is: 8,724,107.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478,171.20 : 15,840,592.32 = 6,321,531.44 : x
  2. Step 2: Convert to fraction form
    11,478,171.20/15,840,592.32 = 6,321,531.44/x
  3. Step 3: Cross multiply
    11,478,171.20x = 15,840,592.32 × 6,321,531.44
  4. Step 4: Simplify right side
    11,478,171.20x = 100,136,802,379,102.55
  5. Step 5: Solve for x
    x = 100,136,802,379,102.55/11,478,171.20
  6. Step 6: Final answer
    x = 8,724,107.75

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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.