Home / 605,078,754.18-907,882,128.66-211,887,786.41

Finding the Fourth Proportional to 605,078,754.18, 907,882,128.66 and 211,887,786.41

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Solution

The fourth proportional to 605,078,754.18, 907,882,128.66 and 211,887,786.41 is: 317,924,126.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,078,754.18 : 907,882,128.66 = 211,887,786.41 : x
  2. Step 2: Convert to fraction form
    605,078,754.18/907,882,128.66 = 211,887,786.41/x
  3. Step 3: Cross multiply
    605,078,754.18x = 907,882,128.66 × 211,887,786.41
  4. Step 4: Simplify right side
    605,078,754.18x = 192,369,134,557,367,360
  5. Step 5: Solve for x
    x = 192,369,134,557,367,360/605,078,754.18
  6. Step 6: Final answer
    x = 317,924,126.78

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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.