Home / 15,397,664.20-21,248,696.11-8,521,911.16

Finding the Fourth Proportional to 15,397,664.20, 21,248,696.11 and 8,521,911.16

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Solution

The fourth proportional to 15,397,664.20, 21,248,696.11 and 8,521,911.16 is: 11,760,192.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,397,664.20 : 21,248,696.11 = 8,521,911.16 : x
  2. Step 2: Convert to fraction form
    15,397,664.20/21,248,696.11 = 8,521,911.16/x
  3. Step 3: Cross multiply
    15,397,664.20x = 21,248,696.11 × 8,521,911.16
  4. Step 4: Simplify right side
    15,397,664.20x = 181,079,500,515,257.59
  5. Step 5: Solve for x
    x = 181,079,500,515,257.59/15,397,664.20
  6. Step 6: Final answer
    x = 11,760,192.86

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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.