Home / 21,289,713.28-29,379,816.48-11,500,157.44

Finding the Fourth Proportional to 21,289,713.28, 29,379,816.48 and 11,500,157.44

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Solution

The fourth proportional to 21,289,713.28, 29,379,816.48 and 11,500,157.44 is: 15,870,223.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289,713.28 : 29,379,816.48 = 11,500,157.44 : x
  2. Step 2: Convert to fraction form
    21,289,713.28/29,379,816.48 = 11,500,157.44/x
  3. Step 3: Cross multiply
    21,289,713.28x = 29,379,816.48 × 11,500,157.44
  4. Step 4: Simplify right side
    21,289,713.28x = 337,872,515,078,306.62
  5. Step 5: Solve for x
    x = 337,872,515,078,306.62/21,289,713.28
  6. Step 6: Final answer
    x = 15,870,223.83

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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.