Home / 18,721,838.30-28,082,757.45-4,538,414.30

Finding the Fourth Proportional to 18,721,838.30, 28,082,757.45 and 4,538,414.30

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Solution

The fourth proportional to 18,721,838.30, 28,082,757.45 and 4,538,414.30 is: 6,807,621.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,838.30 : 28,082,757.45 = 4,538,414.30 : x
  2. Step 2: Convert to fraction form
    18,721,838.30/28,082,757.45 = 4,538,414.30/x
  3. Step 3: Cross multiply
    18,721,838.30x = 28,082,757.45 × 4,538,414.30
  4. Step 4: Simplify right side
    18,721,838.30x = 127,451,187,994,511.53
  5. Step 5: Solve for x
    x = 127,451,187,994,511.53/18,721,838.30
  6. Step 6: Final answer
    x = 6,807,621.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.