Home / 20,669,530.82-28,523,726.17-11,376,902.21

Finding the Fourth Proportional to 20,669,530.82, 28,523,726.17 and 11,376,902.21

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Solution

The fourth proportional to 20,669,530.82, 28,523,726.17 and 11,376,902.21 is: 15,700,000.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669,530.82 : 28,523,726.17 = 11,376,902.21 : x
  2. Step 2: Convert to fraction form
    20,669,530.82/28,523,726.17 = 11,376,902.21/x
  3. Step 3: Cross multiply
    20,669,530.82x = 28,523,726.17 × 11,376,902.21
  4. Step 4: Simplify right side
    20,669,530.82x = 324,511,643,300,907.88
  5. Step 5: Solve for x
    x = 324,511,643,300,907.88/20,669,530.82
  6. Step 6: Final answer
    x = 15,700,000.46

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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.