Home / 318,028,247.87-477,053,000.55-87,978,067.79

Finding the Fourth Proportional to 318,028,247.87, 477,053,000.55 and 87,978,067.79

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Solution

The fourth proportional to 318,028,247.87, 477,053,000.55 and 87,978,067.79 is: 131,970,041.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,028,247.87 : 477,053,000.55 = 87,978,067.79 : x
  2. Step 2: Convert to fraction form
    318,028,247.87/477,053,000.55 = 87,978,067.79/x
  3. Step 3: Cross multiply
    318,028,247.87x = 477,053,000.55 × 87,978,067.79
  4. Step 4: Simplify right side
    318,028,247.87x = 41,970,201,219,425,544
  5. Step 5: Solve for x
    x = 41,970,201,219,425,544/318,028,247.87
  6. Step 6: Final answer
    x = 131,970,041.97

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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.