Home / 320,030,178.30-480,045,267.45-221,394,728.70

Finding the Fourth Proportional to 320,030,178.30, 480,045,267.45 and 221,394,728.70

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Solution

The fourth proportional to 320,030,178.30, 480,045,267.45 and 221,394,728.70 is: 332,092,093.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,030,178.30 : 480,045,267.45 = 221,394,728.70 : x
  2. Step 2: Convert to fraction form
    320,030,178.30/480,045,267.45 = 221,394,728.70/x
  3. Step 3: Cross multiply
    320,030,178.30x = 480,045,267.45 × 221,394,728.70
  4. Step 4: Simplify right side
    320,030,178.30x = 106,279,491,750,811,680
  5. Step 5: Solve for x
    x = 106,279,491,750,811,680/320,030,178.30
  6. Step 6: Final answer
    x = 332,092,093.05

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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.