Home / 723,707,919.28-1,086,021,027.92-309,187,863.60

Finding the Fourth Proportional to 723,707,919.28, 1,086,021,027.92 and 309,187,863.60

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Solution

The fourth proportional to 723,707,919.28, 1,086,021,027.92 and 309,187,863.60 is: 463,977,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,707,919.28 : 1,086,021,027.92 = 309,187,863.60 : x
  2. Step 2: Convert to fraction form
    723,707,919.28/1,086,021,027.92 = 309,187,863.60/x
  3. Step 3: Cross multiply
    723,707,919.28x = 1,086,021,027.92 × 309,187,863.60
  4. Step 4: Simplify right side
    723,707,919.28x = 335,784,521,447,260,800
  5. Step 5: Solve for x
    x = 335,784,521,447,260,800/723,707,919.28
  6. Step 6: Final answer
    x = 463,977,956.44

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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.