Home / 15,189,469.92-20,961,665.37-8,313,804.36

Finding the Fourth Proportional to 15,189,469.92, 20,961,665.37 and 8,313,804.36

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Solution

The fourth proportional to 15,189,469.92, 20,961,665.37 and 8,313,804.36 is: 11,473,157.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,189,469.92 : 20,961,665.37 = 8,313,804.36 : x
  2. Step 2: Convert to fraction form
    15,189,469.92/20,961,665.37 = 8,313,804.36/x
  3. Step 3: Cross multiply
    15,189,469.92x = 20,961,665.37 × 8,313,804.36
  4. Step 4: Simplify right side
    15,189,469.92x = 174,271,184,945,967.03
  5. Step 5: Solve for x
    x = 174,271,184,945,967.03/15,189,469.92
  6. Step 6: Final answer
    x = 11,473,157.78

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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.