Home / 21,289,715.28-29,379,819.24-11,500,159.44

Finding the Fourth Proportional to 21,289,715.28, 29,379,819.24 and 11,500,159.44

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Solution

The fourth proportional to 21,289,715.28, 29,379,819.24 and 11,500,159.44 is: 15,870,226.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289,715.28 : 29,379,819.24 = 11,500,159.44 : x
  2. Step 2: Convert to fraction form
    21,289,715.28/29,379,819.24 = 11,500,159.44/x
  3. Step 3: Cross multiply
    21,289,715.28x = 29,379,819.24 × 11,500,159.44
  4. Step 4: Simplify right side
    21,289,715.28x = 337,872,605,578,379.56
  5. Step 5: Solve for x
    x = 337,872,605,578,379.56/21,289,715.28
  6. Step 6: Final answer
    x = 15,870,226.59

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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.