Home / 5,380,137.90-8,072,369.55-2,185,514.10

Finding the Fourth Proportional to 5,380,137.90, 8,072,369.55 and 2,185,514.10

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Solution

The fourth proportional to 5,380,137.90, 8,072,369.55 and 2,185,514.10 is: 3,279,149.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380,137.90 : 8,072,369.55 = 2,185,514.10 : x
  2. Step 2: Convert to fraction form
    5,380,137.90/8,072,369.55 = 2,185,514.10/x
  3. Step 3: Cross multiply
    5,380,137.90x = 8,072,369.55 × 2,185,514.10
  4. Step 4: Simplify right side
    5,380,137.90x = 17,642,277,471,935.66
  5. Step 5: Solve for x
    x = 17,642,277,471,935.66/5,380,137.90
  6. Step 6: Final answer
    x = 3,279,149.68

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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.