Home / 664,945,027.40-998,425,310.70-511,764,048.20

Finding the Fourth Proportional to 664,945,027.40, 998,425,310.70 and 511,764,048.20

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Solution

The fourth proportional to 664,945,027.40, 998,425,310.70 and 511,764,048.20 is: 768,421,685.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,945,027.40 : 998,425,310.70 = 511,764,048.20 : x
  2. Step 2: Convert to fraction form
    664,945,027.40/998,425,310.70 = 511,764,048.20/x
  3. Step 3: Cross multiply
    664,945,027.40x = 998,425,310.70 × 511,764,048.20
  4. Step 4: Simplify right side
    664,945,027.40x = 510,958,178,829,174,784
  5. Step 5: Solve for x
    x = 510,958,178,829,174,784/664,945,027.40
  6. Step 6: Final answer
    x = 768,421,685.66

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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.