Home / 20,674,680.67-28,530,537.86-11,382,157.97

Finding the Fourth Proportional to 20,674,680.67, 28,530,537.86 and 11,382,157.97

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Solution

The fourth proportional to 20,674,680.67, 28,530,537.86 and 11,382,157.97 is: 15,707,090.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,674,680.67 : 28,530,537.86 = 11,382,157.97 : x
  2. Step 2: Convert to fraction form
    20,674,680.67/28,530,537.86 = 11,382,157.97/x
  3. Step 3: Cross multiply
    20,674,680.67x = 28,530,537.86 × 11,382,157.97
  4. Step 4: Simplify right side
    20,674,680.67x = 324,739,088,884,378
  5. Step 5: Solve for x
    x = 324,739,088,884,378/20,674,680.67
  6. Step 6: Final answer
    x = 15,707,090.91

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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.