Home / 812,422,373.20-1,217,783,023.70-339,992,093.04

Finding the Fourth Proportional to 812,422,373.20, 1,217,783,023.70 and 339,992,093.04

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Solution

The fourth proportional to 812,422,373.20, 1,217,783,023.70 and 339,992,093.04 is: 509,632,197.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,422,373.20 : 1,217,783,023.70 = 339,992,093.04 : x
  2. Step 2: Convert to fraction form
    812,422,373.20/1,217,783,023.70 = 339,992,093.04/x
  3. Step 3: Cross multiply
    812,422,373.20x = 1,217,783,023.70 × 339,992,093.04
  4. Step 4: Simplify right side
    812,422,373.20x = 414,036,599,096,342,976
  5. Step 5: Solve for x
    x = 414,036,599,096,342,976/812,422,373.20
  6. Step 6: Final answer
    x = 509,632,197.19

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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.