Home / 393,198,212.07-542,626,565.08-214,591,879.89

Finding the Fourth Proportional to 393,198,212.07, 542,626,565.08 and 214,591,879.89

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Solution

The fourth proportional to 393,198,212.07, 542,626,565.08 and 214,591,879.89 is: 296,143,906.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,198,212.07 : 542,626,565.08 = 214,591,879.89 : x
  2. Step 2: Convert to fraction form
    393,198,212.07/542,626,565.08 = 214,591,879.89/x
  3. Step 3: Cross multiply
    393,198,212.07x = 542,626,565.08 × 214,591,879.89
  4. Step 4: Simplify right side
    393,198,212.07x = 116,443,254,680,253,648
  5. Step 5: Solve for x
    x = 116,443,254,680,253,648/393,198,212.07
  6. Step 6: Final answer
    x = 296,143,906.83

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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.