Home / 266,119,390.20-399,179,085.30-129,892,164.60

Finding the Fourth Proportional to 266,119,390.20, 399,179,085.30 and 129,892,164.60

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Solution

The fourth proportional to 266,119,390.20, 399,179,085.30 and 129,892,164.60 is: 194,838,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,119,390.20 : 399,179,085.30 = 129,892,164.60 : x
  2. Step 2: Convert to fraction form
    266,119,390.20/399,179,085.30 = 129,892,164.60/x
  3. Step 3: Cross multiply
    266,119,390.20x = 399,179,085.30 × 129,892,164.60
  4. Step 4: Simplify right side
    266,119,390.20x = 51,850,235,452,665,040
  5. Step 5: Solve for x
    x = 51,850,235,452,665,040/266,119,390.20
  6. Step 6: Final answer
    x = 194,838,246.90

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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.