Home / 629,784,821.80-944,677,232.70-400,769,180.20

Finding the Fourth Proportional to 629,784,821.80, 944,677,232.70 and 400,769,180.20

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Solution

The fourth proportional to 629,784,821.80, 944,677,232.70 and 400,769,180.20 is: 601,153,770.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,784,821.80 : 944,677,232.70 = 400,769,180.20 : x
  2. Step 2: Convert to fraction form
    629,784,821.80/944,677,232.70 = 400,769,180.20/x
  3. Step 3: Cross multiply
    629,784,821.80x = 944,677,232.70 × 400,769,180.20
  4. Step 4: Simplify right side
    629,784,821.80x = 378,597,520,102,783,616
  5. Step 5: Solve for x
    x = 378,597,520,102,783,616/629,784,821.80
  6. Step 6: Final answer
    x = 601,153,770.30

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1.5x scale

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.