Home / 20,112,176.88-27,752,884.74-11,289,608.82

Finding the Fourth Proportional to 20,112,176.88, 27,752,884.74 and 11,289,608.82

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Solution

The fourth proportional to 20,112,176.88, 27,752,884.74 and 11,289,608.82 is: 15,578,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112,176.88 : 27,752,884.74 = 11,289,608.82 : x
  2. Step 2: Convert to fraction form
    20,112,176.88/27,752,884.74 = 11,289,608.82/x
  3. Step 3: Cross multiply
    20,112,176.88x = 27,752,884.74 × 11,289,608.82
  4. Step 4: Simplify right side
    20,112,176.88x = 313,319,212,341,147.38
  5. Step 5: Solve for x
    x = 313,319,212,341,147.38/20,112,176.88
  6. Step 6: Final answer
    x = 15,578,582.78

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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.