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Finding the Fourth Proportional to 647,956,503.45, 894,296,372.49 and 365,784,952.05

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Solution

The fourth proportional to 647,956,503.45, 894,296,372.49 and 365,784,952.05 is: 504,848,942.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,956,503.45 : 894,296,372.49 = 365,784,952.05 : x
  2. Step 2: Convert to fraction form
    647,956,503.45/894,296,372.49 = 365,784,952.05/x
  3. Step 3: Cross multiply
    647,956,503.45x = 894,296,372.49 × 365,784,952.05
  4. Step 4: Simplify right side
    647,956,503.45x = 327,120,155,729,743,616
  5. Step 5: Solve for x
    x = 327,120,155,729,743,616/647,956,503.45
  6. Step 6: Final answer
    x = 504,848,942.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.