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Finding the Fourth Proportional to 9,405,759.44, 12,978,573 and 5,536,007.12

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Solution

The fourth proportional to 9,405,759.44, 12,978,573 and 5,536,007.12 is: 7,638,880.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,405,759.44 : 12,978,573 = 5,536,007.12 : x
  2. Step 2: Convert to fraction form
    9,405,759.44/12,978,573 = 5,536,007.12/x
  3. Step 3: Cross multiply
    9,405,759.44x = 12,978,573 × 5,536,007.12
  4. Step 4: Simplify right side
    9,405,759.44x = 71,849,472,535,439.77
  5. Step 5: Solve for x
    x = 71,849,472,535,439.77/9,405,759.44
  6. Step 6: Final answer
    x = 7,638,880.52

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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.