Home / 20,588,092.05-28,388,269.47-13,135,780.20

Finding the Fourth Proportional to 20,588,092.05, 28,388,269.47 and 13,135,780.20

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Solution

The fourth proportional to 20,588,092.05, 28,388,269.47 and 13,135,780.20 is: 18,112,512.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,588,092.05 : 28,388,269.47 = 13,135,780.20 : x
  2. Step 2: Convert to fraction form
    20,588,092.05/28,388,269.47 = 13,135,780.20/x
  3. Step 3: Cross multiply
    20,588,092.05x = 28,388,269.47 × 13,135,780.20
  4. Step 4: Simplify right side
    20,588,092.05x = 372,902,068,016,290.44
  5. Step 5: Solve for x
    x = 372,902,068,016,290.44/20,588,092.05
  6. Step 6: Final answer
    x = 18,112,512.18

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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.