Home / 365,981,779.91-505,040,691.05-198,714,212.74

Finding the Fourth Proportional to 365,981,779.91, 505,040,691.05 and 198,714,212.74

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Solution

The fourth proportional to 365,981,779.91, 505,040,691.05 and 198,714,212.74 is: 274,217,922.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,981,779.91 : 505,040,691.05 = 198,714,212.74 : x
  2. Step 2: Convert to fraction form
    365,981,779.91/505,040,691.05 = 198,714,212.74/x
  3. Step 3: Cross multiply
    365,981,779.91x = 505,040,691.05 × 198,714,212.74
  4. Step 4: Simplify right side
    365,981,779.91x = 100,358,763,325,371,216
  5. Step 5: Solve for x
    x = 100,358,763,325,371,216/365,981,779.91
  6. Step 6: Final answer
    x = 274,217,922.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.