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Finding the Fourth Proportional to 509,337,617.70, 764,006,426.55 and 509,337,617.70

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Solution

The fourth proportional to 509,337,617.70, 764,006,426.55 and 509,337,617.70 is: 764,006,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,337,617.70 : 764,006,426.55 = 509,337,617.70 : x
  2. Step 2: Convert to fraction form
    509,337,617.70/764,006,426.55 = 509,337,617.70/x
  3. Step 3: Cross multiply
    509,337,617.70x = 764,006,426.55 × 509,337,617.70
  4. Step 4: Simplify right side
    509,337,617.70x = 389,137,213,206,467,008
  5. Step 5: Solve for x
    x = 389,137,213,206,467,008/509,337,617.70
  6. Step 6: Final answer
    x = 764,006,426.55

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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.