Home / 5,136,644.70-7,690,221.45-4,989,188.70

Finding the Fourth Proportional to 5,136,644.70, 7,690,221.45 and 4,989,188.70

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Solution

The fourth proportional to 5,136,644.70, 7,690,221.45 and 4,989,188.70 is: 7,469,460.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,136,644.70 : 7,690,221.45 = 4,989,188.70 : x
  2. Step 2: Convert to fraction form
    5,136,644.70/7,690,221.45 = 4,989,188.70/x
  3. Step 3: Cross multiply
    5,136,644.70x = 7,690,221.45 × 4,989,188.70
  4. Step 4: Simplify right side
    5,136,644.70x = 38,367,965,958,837.62
  5. Step 5: Solve for x
    x = 38,367,965,958,837.62/5,136,644.70
  6. Step 6: Final answer
    x = 7,469,460.75

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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.