Home / 20,882,121.17-28,816,893.74-11,589,151.52

Finding the Fourth Proportional to 20,882,121.17, 28,816,893.74 and 11,589,151.52

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Solution

The fourth proportional to 20,882,121.17, 28,816,893.74 and 11,589,151.52 is: 15,992,788.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882,121.17 : 28,816,893.74 = 11,589,151.52 : x
  2. Step 2: Convert to fraction form
    20,882,121.17/28,816,893.74 = 11,589,151.52/x
  3. Step 3: Cross multiply
    20,882,121.17x = 28,816,893.74 × 11,589,151.52
  4. Step 4: Simplify right side
    20,882,121.17x = 333,963,347,989,614.62
  5. Step 5: Solve for x
    x = 333,963,347,989,614.62/20,882,121.17
  6. Step 6: Final answer
    x = 15,992,788.54

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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.