Home / 664,945,027.90-998,425,311.45-511,764,048.70

Finding the Fourth Proportional to 664,945,027.90, 998,425,311.45 and 511,764,048.70

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Solution

The fourth proportional to 664,945,027.90, 998,425,311.45 and 511,764,048.70 is: 768,421,686.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,945,027.90 : 998,425,311.45 = 511,764,048.70 : x
  2. Step 2: Convert to fraction form
    664,945,027.90/998,425,311.45 = 511,764,048.70/x
  3. Step 3: Cross multiply
    664,945,027.90x = 998,425,311.45 × 511,764,048.70
  4. Step 4: Simplify right side
    664,945,027.90x = 510,958,179,712,210,496
  5. Step 5: Solve for x
    x = 510,958,179,712,210,496/664,945,027.90
  6. Step 6: Final answer
    x = 768,421,686.42

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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.