Home / 331,994,285.40-497,991,428.10-217,332,499.80

Finding the Fourth Proportional to 331,994,285.40, 497,991,428.10 and 217,332,499.80

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Solution

The fourth proportional to 331,994,285.40, 497,991,428.10 and 217,332,499.80 is: 325,998,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,994,285.40 : 497,991,428.10 = 217,332,499.80 : x
  2. Step 2: Convert to fraction form
    331,994,285.40/497,991,428.10 = 217,332,499.80/x
  3. Step 3: Cross multiply
    331,994,285.40x = 497,991,428.10 × 217,332,499.80
  4. Step 4: Simplify right side
    331,994,285.40x = 108,229,721,947,944,976
  5. Step 5: Solve for x
    x = 108,229,721,947,944,976/331,994,285.40
  6. Step 6: Final answer
    x = 325,998,749.70

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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.