Home / 3,991,058.31-5,507,665.62-2,272,178.78

Finding the Fourth Proportional to 3,991,058.31, 5,507,665.62 and 2,272,178.78

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Solution

The fourth proportional to 3,991,058.31, 5,507,665.62 and 2,272,178.78 is: 3,135,609.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,058.31 : 5,507,665.62 = 2,272,178.78 : x
  2. Step 2: Convert to fraction form
    3,991,058.31/5,507,665.62 = 2,272,178.78/x
  3. Step 3: Cross multiply
    3,991,058.31x = 5,507,665.62 × 2,272,178.78
  4. Step 4: Simplify right side
    3,991,058.31x = 12,514,400,921,561.21
  5. Step 5: Solve for x
    x = 12,514,400,921,561.21/3,991,058.31
  6. Step 6: Final answer
    x = 3,135,609.64

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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.