Home / 394,416,068.80-591,624,103.20-213,017,540.80

Finding the Fourth Proportional to 394,416,068.80, 591,624,103.20 and 213,017,540.80

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Solution

The fourth proportional to 394,416,068.80, 591,624,103.20 and 213,017,540.80 is: 319,526,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,416,068.80 : 591,624,103.20 = 213,017,540.80 : x
  2. Step 2: Convert to fraction form
    394,416,068.80/591,624,103.20 = 213,017,540.80/x
  3. Step 3: Cross multiply
    394,416,068.80x = 591,624,103.20 × 213,017,540.80
  4. Step 4: Simplify right side
    394,416,068.80x = 126,026,311,541,669,424
  5. Step 5: Solve for x
    x = 126,026,311,541,669,424/394,416,068.80
  6. Step 6: Final answer
    x = 319,526,311.20

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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.