Home / 13,321,977.36-18,384,664.72-8,168,180.64

Finding the Fourth Proportional to 13,321,977.36, 18,384,664.72 and 8,168,180.64

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Solution

The fourth proportional to 13,321,977.36, 18,384,664.72 and 8,168,180.64 is: 11,272,295.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,977.36 : 18,384,664.72 = 8,168,180.64 : x
  2. Step 2: Convert to fraction form
    13,321,977.36/18,384,664.72 = 8,168,180.64/x
  3. Step 3: Cross multiply
    13,321,977.36x = 18,384,664.72 × 8,168,180.64
  4. Step 4: Simplify right side
    13,321,977.36x = 150,169,262,438,795
  5. Step 5: Solve for x
    x = 150,169,262,438,795/13,321,977.36
  6. Step 6: Final answer
    x = 11,272,295.27

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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.