Home / 20,159,388.20-30,239,082.30-12,097,231.40

Finding the Fourth Proportional to 20,159,388.20, 30,239,082.30 and 12,097,231.40

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Solution

The fourth proportional to 20,159,388.20, 30,239,082.30 and 12,097,231.40 is: 18,145,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,159,388.20 : 30,239,082.30 = 12,097,231.40 : x
  2. Step 2: Convert to fraction form
    20,159,388.20/30,239,082.30 = 12,097,231.40/x
  3. Step 3: Cross multiply
    20,159,388.20x = 30,239,082.30 × 12,097,231.40
  4. Step 4: Simplify right side
    20,159,388.20x = 365,809,175,906,744.25
  5. Step 5: Solve for x
    x = 365,809,175,906,744.25/20,159,388.20
  6. Step 6: Final answer
    x = 18,145,847.10

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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.