Home / 21,668,794.28-29,902,745.31-11,879,060.66

Finding the Fourth Proportional to 21,668,794.28, 29,902,745.31 and 11,879,060.66

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Solution

The fourth proportional to 21,668,794.28, 29,902,745.31 and 11,879,060.66 is: 16,392,999.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668,794.28 : 29,902,745.31 = 11,879,060.66 : x
  2. Step 2: Convert to fraction form
    21,668,794.28/29,902,745.31 = 11,879,060.66/x
  3. Step 3: Cross multiply
    21,668,794.28x = 29,902,745.31 × 11,879,060.66
  4. Step 4: Simplify right side
    21,668,794.28x = 355,216,525,438,020.50
  5. Step 5: Solve for x
    x = 355,216,525,438,020.50/21,668,794.28
  6. Step 6: Final answer
    x = 16,392,999.11

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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.