Home / 21,289,201.30-29,379,109.15-11,499,645.28

Finding the Fourth Proportional to 21,289,201.30, 29,379,109.15 and 11,499,645.28

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Solution

The fourth proportional to 21,289,201.30, 29,379,109.15 and 11,499,645.28 is: 15,869,516.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289,201.30 : 29,379,109.15 = 11,499,645.28 : x
  2. Step 2: Convert to fraction form
    21,289,201.30/29,379,109.15 = 11,499,645.28/x
  3. Step 3: Cross multiply
    21,289,201.30x = 29,379,109.15 × 11,499,645.28
  4. Step 4: Simplify right side
    21,289,201.30x = 337,849,333,863,414.94
  5. Step 5: Solve for x
    x = 337,849,333,863,414.94/21,289,201.30
  6. Step 6: Final answer
    x = 15,869,516.62

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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.