Home / 20,181,616.52-27,840,944.32-13,209,224.39

Finding the Fourth Proportional to 20,181,616.52, 27,840,944.32 and 13,209,224.39

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Solution

The fourth proportional to 20,181,616.52, 27,840,944.32 and 13,209,224.39 is: 18,222,389.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181,616.52 : 27,840,944.32 = 13,209,224.39 : x
  2. Step 2: Convert to fraction form
    20,181,616.52/27,840,944.32 = 13,209,224.39/x
  3. Step 3: Cross multiply
    20,181,616.52x = 27,840,944.32 × 13,209,224.39
  4. Step 4: Simplify right side
    20,181,616.52x = 367,757,280,934,044.31
  5. Step 5: Solve for x
    x = 367,757,280,934,044.31/20,181,616.52
  6. Step 6: Final answer
    x = 18,222,389.69

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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.