Home / 12,502,170.72-18,728,990.91-9,213,552.63

Finding the Fourth Proportional to 12,502,170.72, 18,728,990.91 and 9,213,552.63

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Solution

The fourth proportional to 12,502,170.72, 18,728,990.91 and 9,213,552.63 is: 13,802,446.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,502,170.72 : 18,728,990.91 = 9,213,552.63 : x
  2. Step 2: Convert to fraction form
    12,502,170.72/18,728,990.91 = 9,213,552.63/x
  3. Step 3: Cross multiply
    12,502,170.72x = 18,728,990.91 × 9,213,552.63
  4. Step 4: Simplify right side
    12,502,170.72x = 172,560,543,456,076.62
  5. Step 5: Solve for x
    x = 172,560,543,456,076.62/12,502,170.72
  6. Step 6: Final answer
    x = 13,802,446.58

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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.