Home / 20,896,137.72-28,835,088-11,727,009

Finding the Fourth Proportional to 20,896,137.72, 28,835,088 and 11,727,009

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Solution

The fourth proportional to 20,896,137.72, 28,835,088 and 11,727,009 is: 16,182,384.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896,137.72 : 28,835,088 = 11,727,009 : x
  2. Step 2: Convert to fraction form
    20,896,137.72/28,835,088 = 11,727,009/x
  3. Step 3: Cross multiply
    20,896,137.72x = 28,835,088 × 11,727,009
  4. Step 4: Simplify right side
    20,896,137.72x = 338,149,336,491,792
  5. Step 5: Solve for x
    x = 338,149,336,491,792/20,896,137.72
  6. Step 6: Final answer
    x = 16,182,384.56

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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.