Home / 13,111,081.28-18,086,861.22-8,761,235.48

Finding the Fourth Proportional to 13,111,081.28, 18,086,861.22 and 8,761,235.48

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Solution

The fourth proportional to 13,111,081.28, 18,086,861.22 and 8,761,235.48 is: 12,086,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111,081.28 : 18,086,861.22 = 8,761,235.48 : x
  2. Step 2: Convert to fraction form
    13,111,081.28/18,086,861.22 = 8,761,235.48/x
  3. Step 3: Cross multiply
    13,111,081.28x = 18,086,861.22 × 8,761,235.48
  4. Step 4: Simplify right side
    13,111,081.28x = 158,463,250,242,500.09
  5. Step 5: Solve for x
    x = 158,463,250,242,500.09/13,111,081.28
  6. Step 6: Final answer
    x = 12,086,207.60

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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.