Home / 20,882,618.88-28,816,541.28-11,590,661.76

Finding the Fourth Proportional to 20,882,618.88, 28,816,541.28 and 11,590,661.76

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Solution

The fourth proportional to 20,882,618.88, 28,816,541.28 and 11,590,661.76 is: 15,994,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882,618.88 : 28,816,541.28 = 11,590,661.76 : x
  2. Step 2: Convert to fraction form
    20,882,618.88/28,816,541.28 = 11,590,661.76/x
  3. Step 3: Cross multiply
    20,882,618.88x = 28,816,541.28 × 11,590,661.76
  4. Step 4: Simplify right side
    20,882,618.88x = 334,002,783,069,557.44
  5. Step 5: Solve for x
    x = 334,002,783,069,557.44/20,882,618.88
  6. Step 6: Final answer
    x = 15,994,295.78

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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.