Home / 605,078,786.70-907,882,177.44-211,887,818.90

Finding the Fourth Proportional to 605,078,786.70, 907,882,177.44 and 211,887,818.90

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Solution

The fourth proportional to 605,078,786.70, 907,882,177.44 and 211,887,818.90 is: 317,924,175.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,078,786.70 : 907,882,177.44 = 211,887,818.90 : x
  2. Step 2: Convert to fraction form
    605,078,786.70/907,882,177.44 = 211,887,818.90/x
  3. Step 3: Cross multiply
    605,078,786.70x = 907,882,177.44 × 211,887,818.90
  4. Step 4: Simplify right side
    605,078,786.70x = 192,369,174,395,944,416
  5. Step 5: Solve for x
    x = 192,369,174,395,944,416/605,078,786.70
  6. Step 6: Final answer
    x = 317,924,175.54

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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.