Home / 15,189,515.92-20,961,728.94-8,313,850.36

Finding the Fourth Proportional to 15,189,515.92, 20,961,728.94 and 8,313,850.36

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Solution

The fourth proportional to 15,189,515.92, 20,961,728.94 and 8,313,850.36 is: 11,473,221.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189,515.92 : 20,961,728.94 = 8,313,850.36 : x
  2. Step 2: Convert to fraction form
    15,189,515.92/20,961,728.94 = 8,313,850.36/x
  3. Step 3: Cross multiply
    15,189,515.92x = 20,961,728.94 × 8,313,850.36
  4. Step 4: Simplify right side
    15,189,515.92x = 174,272,677,694,041.44
  5. Step 5: Solve for x
    x = 174,272,677,694,041.44/15,189,515.92
  6. Step 6: Final answer
    x = 11,473,221.31

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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.