Home / 251,659,611.78-377,502,869.76-79,149,877.37

Finding the Fourth Proportional to 251,659,611.78, 377,502,869.76 and 79,149,877.37

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Solution

The fourth proportional to 251,659,611.78, 377,502,869.76 and 79,149,877.37 is: 118,729,046.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,659,611.78 : 377,502,869.76 = 79,149,877.37 : x
  2. Step 2: Convert to fraction form
    251,659,611.78/377,502,869.76 = 79,149,877.37/x
  3. Step 3: Cross multiply
    251,659,611.78x = 377,502,869.76 × 79,149,877.37
  4. Step 4: Simplify right side
    251,659,611.78x = 29,879,305,847,558,396
  5. Step 5: Solve for x
    x = 29,879,305,847,558,396/251,659,611.78
  6. Step 6: Final answer
    x = 118,729,046.89

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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.