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Finding the Fourth Proportional to 266,239,245.00, 399,401,780.72 and 82,006,635.54

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Solution

The fourth proportional to 266,239,245.00, 399,401,780.72 and 82,006,635.54 is: 123,023,171.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,239,245.00 : 399,401,780.72 = 82,006,635.54 : x
  2. Step 2: Convert to fraction form
    266,239,245.00/399,401,780.72 = 82,006,635.54/x
  3. Step 3: Cross multiply
    266,239,245.00x = 399,401,780.72 × 82,006,635.54
  4. Step 4: Simplify right side
    266,239,245.00x = 32,753,596,264,239,300
  5. Step 5: Solve for x
    x = 32,753,596,264,239,300/266,239,245.00
  6. Step 6: Final answer
    x = 123,023,171.38

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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.