Home / 13,558,012.88-18,702,247.56-8,122,355.60

Finding the Fourth Proportional to 13,558,012.88, 18,702,247.56 and 8,122,355.60

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Solution

The fourth proportional to 13,558,012.88, 18,702,247.56 and 8,122,355.60 is: 11,204,171.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558,012.88 : 18,702,247.56 = 8,122,355.60 : x
  2. Step 2: Convert to fraction form
    13,558,012.88/18,702,247.56 = 8,122,355.60/x
  3. Step 3: Cross multiply
    13,558,012.88x = 18,702,247.56 × 8,122,355.60
  4. Step 4: Simplify right side
    13,558,012.88x = 151,906,305,201,552.31
  5. Step 5: Solve for x
    x = 151,906,305,201,552.31/13,558,012.88
  6. Step 6: Final answer
    x = 11,204,171.77

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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.