Home / 20,368,732.05-28,109,589.36-11,668,586.13

Finding the Fourth Proportional to 20,368,732.05, 28,109,589.36 and 11,668,586.13

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Solution

The fourth proportional to 20,368,732.05, 28,109,589.36 and 11,668,586.13 is: 16,103,072.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,368,732.05 : 28,109,589.36 = 11,668,586.13 : x
  2. Step 2: Convert to fraction form
    20,368,732.05/28,109,589.36 = 11,668,586.13/x
  3. Step 3: Cross multiply
    20,368,732.05x = 28,109,589.36 × 11,668,586.13
  4. Step 4: Simplify right side
    20,368,732.05x = 327,999,164,526,091.56
  5. Step 5: Solve for x
    x = 327,999,164,526,091.56/20,368,732.05
  6. Step 6: Final answer
    x = 16,103,072.28

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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.