Home / 20,250,830.25-27,945,931.91-10,958,196.78

Finding the Fourth Proportional to 20,250,830.25, 27,945,931.91 and 10,958,196.78

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Solution

The fourth proportional to 20,250,830.25, 27,945,931.91 and 10,958,196.78 is: 15,122,195.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250,830.25 : 27,945,931.91 = 10,958,196.78 : x
  2. Step 2: Convert to fraction form
    20,250,830.25/27,945,931.91 = 10,958,196.78/x
  3. Step 3: Cross multiply
    20,250,830.25x = 27,945,931.91 × 10,958,196.78
  4. Step 4: Simplify right side
    20,250,830.25x = 306,237,021,015,470.25
  5. Step 5: Solve for x
    x = 306,237,021,015,470.25/20,250,830.25
  6. Step 6: Final answer
    x = 15,122,195.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.