Home / 20,512,174.20-30,768,261.30-9,895,342.20

Finding the Fourth Proportional to 20,512,174.20, 30,768,261.30 and 9,895,342.20

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Solution

The fourth proportional to 20,512,174.20, 30,768,261.30 and 9,895,342.20 is: 14,843,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512,174.20 : 30,768,261.30 = 9,895,342.20 : x
  2. Step 2: Convert to fraction form
    20,512,174.20/30,768,261.30 = 9,895,342.20/x
  3. Step 3: Cross multiply
    20,512,174.20x = 30,768,261.30 × 9,895,342.20
  4. Step 4: Simplify right side
    20,512,174.20x = 304,462,474,462,516.88
  5. Step 5: Solve for x
    x = 304,462,474,462,516.88/20,512,174.20
  6. Step 6: Final answer
    x = 14,843,013.30

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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.