Home / 15,321,377.70-21,143,644.92-8,446,105.80

Finding the Fourth Proportional to 15,321,377.70, 21,143,644.92 and 8,446,105.80

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Solution

The fourth proportional to 15,321,377.70, 21,143,644.92 and 8,446,105.80 is: 11,655,705.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,321,377.70 : 21,143,644.92 = 8,446,105.80 : x
  2. Step 2: Convert to fraction form
    15,321,377.70/21,143,644.92 = 8,446,105.80/x
  3. Step 3: Cross multiply
    15,321,377.70x = 21,143,644.92 × 8,446,105.80
  4. Step 4: Simplify right side
    15,321,377.70x = 178,581,461,991,952.56
  5. Step 5: Solve for x
    x = 178,581,461,991,952.56/15,321,377.70
  6. Step 6: Final answer
    x = 11,655,705.22

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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.