Home / 13,590,721.35-18,755,198.69-7,479,149.85

Finding the Fourth Proportional to 13,590,721.35, 18,755,198.69 and 7,479,149.85

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Solution

The fourth proportional to 13,590,721.35, 18,755,198.69 and 7,479,149.85 is: 10,321,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,590,721.35 : 18,755,198.69 = 7,479,149.85 : x
  2. Step 2: Convert to fraction form
    13,590,721.35/18,755,198.69 = 7,479,149.85/x
  3. Step 3: Cross multiply
    13,590,721.35x = 18,755,198.69 × 7,479,149.85
  4. Step 4: Simplify right side
    13,590,721.35x = 140,272,941,431,637.94
  5. Step 5: Solve for x
    x = 140,272,941,431,637.94/13,590,721.35
  6. Step 6: Final answer
    x = 10,321,228.57

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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.