Home / 20,794,270.09-28,694,166.96-11,501,640.19

Finding the Fourth Proportional to 20,794,270.09, 28,694,166.96 and 11,501,640.19

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Solution

The fourth proportional to 20,794,270.09, 28,694,166.96 and 11,501,640.19 is: 15,871,198.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794,270.09 : 28,694,166.96 = 11,501,640.19 : x
  2. Step 2: Convert to fraction form
    20,794,270.09/28,694,166.96 = 11,501,640.19/x
  3. Step 3: Cross multiply
    20,794,270.09x = 28,694,166.96 × 11,501,640.19
  4. Step 4: Simplify right side
    20,794,270.09x = 330,029,983,853,970.69
  5. Step 5: Solve for x
    x = 330,029,983,853,970.69/20,794,270.09
  6. Step 6: Final answer
    x = 15,871,198.29

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1.5x scale

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.