Home / 21,289,719.28-29,379,824.76-11,500,163.44

Finding the Fourth Proportional to 21,289,719.28, 29,379,824.76 and 11,500,163.44

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Solution

The fourth proportional to 21,289,719.28, 29,379,824.76 and 11,500,163.44 is: 15,870,232.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289,719.28 : 29,379,824.76 = 11,500,163.44 : x
  2. Step 2: Convert to fraction form
    21,289,719.28/29,379,824.76 = 11,500,163.44/x
  3. Step 3: Cross multiply
    21,289,719.28x = 29,379,824.76 × 11,500,163.44
  4. Step 4: Simplify right side
    21,289,719.28x = 337,872,786,578,558.75
  5. Step 5: Solve for x
    x = 337,872,786,578,558.75/21,289,719.28
  6. Step 6: Final answer
    x = 15,870,232.11

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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.