Home / 644,738,487.20-967,297,474.92-208,030,978.88

Finding the Fourth Proportional to 644,738,487.20, 967,297,474.92 and 208,030,978.88

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Solution

The fourth proportional to 644,738,487.20, 967,297,474.92 and 208,030,978.88 is: 312,107,691.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,738,487.20 : 967,297,474.92 = 208,030,978.88 : x
  2. Step 2: Convert to fraction form
    644,738,487.20/967,297,474.92 = 208,030,978.88/x
  3. Step 3: Cross multiply
    644,738,487.20x = 967,297,474.92 × 208,030,978.88
  4. Step 4: Simplify right side
    644,738,487.20x = 201,227,840,575,759,840
  5. Step 5: Solve for x
    x = 201,227,840,575,759,840/644,738,487.20
  6. Step 6: Final answer
    x = 312,107,691.06

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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.