Home / 13,321,640.16-18,384,309.20-8,164,005.68

Finding the Fourth Proportional to 13,321,640.16, 18,384,309.20 and 8,164,005.68

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Solution

The fourth proportional to 13,321,640.16, 18,384,309.20 and 8,164,005.68 is: 11,266,601.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321,640.16 : 18,384,309.20 = 8,164,005.68 : x
  2. Step 2: Convert to fraction form
    13,321,640.16/18,384,309.20 = 8,164,005.68/x
  3. Step 3: Cross multiply
    13,321,640.16x = 18,384,309.20 × 8,164,005.68
  4. Step 4: Simplify right side
    13,321,640.16x = 150,089,604,731,676.25
  5. Step 5: Solve for x
    x = 150,089,604,731,676.25/13,321,640.16
  6. Step 6: Final answer
    x = 11,266,601.03

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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.