Home / 13,172,341.30-18,178,046.23-7,211,648.66

Finding the Fourth Proportional to 13,172,341.30, 18,178,046.23 and 7,211,648.66

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Solution

The fourth proportional to 13,172,341.30, 18,178,046.23 and 7,211,648.66 is: 9,952,192.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172,341.30 : 18,178,046.23 = 7,211,648.66 : x
  2. Step 2: Convert to fraction form
    13,172,341.30/18,178,046.23 = 7,211,648.66/x
  3. Step 3: Cross multiply
    13,172,341.30x = 18,178,046.23 × 7,211,648.66
  4. Step 4: Simplify right side
    13,172,341.30x = 131,093,682,699,939.33
  5. Step 5: Solve for x
    x = 131,093,682,699,939.33/13,172,341.30
  6. Step 6: Final answer
    x = 9,952,192.99

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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.