Home / 266,120,098.20-399,180,147.30-129,892,872.60

Finding the Fourth Proportional to 266,120,098.20, 399,180,147.30 and 129,892,872.60

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Solution

The fourth proportional to 266,120,098.20, 399,180,147.30 and 129,892,872.60 is: 194,839,308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,120,098.20 : 399,180,147.30 = 129,892,872.60 : x
  2. Step 2: Convert to fraction form
    266,120,098.20/399,180,147.30 = 129,892,872.60/x
  3. Step 3: Cross multiply
    266,120,098.20x = 399,180,147.30 × 129,892,872.60
  4. Step 4: Simplify right side
    266,120,098.20x = 51,850,656,017,688,136
  5. Step 5: Solve for x
    x = 51,850,656,017,688,136/266,120,098.20
  6. Step 6: Final answer
    x = 194,839,308.90

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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.