Home / 20,538,226.62-28,343,797.83-11,371,877.82

Finding the Fourth Proportional to 20,538,226.62, 28,343,797.83 and 11,371,877.82

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Solution

The fourth proportional to 20,538,226.62, 28,343,797.83 and 11,371,877.82 is: 15,693,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538,226.62 : 28,343,797.83 = 11,371,877.82 : x
  2. Step 2: Convert to fraction form
    20,538,226.62/28,343,797.83 = 11,371,877.82/x
  3. Step 3: Cross multiply
    20,538,226.62x = 28,343,797.83 × 11,371,877.82
  4. Step 4: Simplify right side
    20,538,226.62x = 322,322,205,877,541.12
  5. Step 5: Solve for x
    x = 322,322,205,877,541.12/20,538,226.62
  6. Step 6: Final answer
    x = 15,693,770.05

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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.