Home / 20,166,138.90-30,261,018.15-7,387,935.30

Finding the Fourth Proportional to 20,166,138.90, 30,261,018.15 and 7,387,935.30

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Solution

The fourth proportional to 20,166,138.90, 30,261,018.15 and 7,387,935.30 is: 11,086,229.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166,138.90 : 30,261,018.15 = 7,387,935.30 : x
  2. Step 2: Convert to fraction form
    20,166,138.90/30,261,018.15 = 7,387,935.30/x
  3. Step 3: Cross multiply
    20,166,138.90x = 30,261,018.15 × 7,387,935.30
  4. Step 4: Simplify right side
    20,166,138.90x = 223,566,444,204,325.69
  5. Step 5: Solve for x
    x = 223,566,444,204,325.69/20,166,138.90
  6. Step 6: Final answer
    x = 11,086,229.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.