Home / 378,624,690.40-567,545,125.20-205,736,216.80

Finding the Fourth Proportional to 378,624,690.40, 567,545,125.20 and 205,736,216.80

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Solution

The fourth proportional to 378,624,690.40, 567,545,125.20 and 205,736,216.80 is: 308,391,369.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,624,690.40 : 567,545,125.20 = 205,736,216.80 : x
  2. Step 2: Convert to fraction form
    378,624,690.40/567,545,125.20 = 205,736,216.80/x
  3. Step 3: Cross multiply
    378,624,690.40x = 567,545,125.20 × 205,736,216.80
  4. Step 4: Simplify right side
    378,624,690.40x = 116,764,586,921,930,352
  5. Step 5: Solve for x
    x = 116,764,586,921,930,352/378,624,690.40
  6. Step 6: Final answer
    x = 308,391,369.82

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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.