Home / 20,231,213.10-30,336,322.05-7,445,136.30

Finding the Fourth Proportional to 20,231,213.10, 30,336,322.05 and 7,445,136.30

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Solution

The fourth proportional to 20,231,213.10, 30,336,322.05 and 7,445,136.30 is: 11,163,841.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231,213.10 : 30,336,322.05 = 7,445,136.30 : x
  2. Step 2: Convert to fraction form
    20,231,213.10/30,336,322.05 = 7,445,136.30/x
  3. Step 3: Cross multiply
    20,231,213.10x = 30,336,322.05 × 7,445,136.30
  4. Step 4: Simplify right side
    20,231,213.10x = 225,858,052,502,945.41
  5. Step 5: Solve for x
    x = 225,858,052,502,945.41/20,231,213.10
  6. Step 6: Final answer
    x = 11,163,841.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.