Home / 20,726,770.32-28,603,310.76-11,558,428.56

Finding the Fourth Proportional to 20,726,770.32, 28,603,310.76 and 11,558,428.56

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Solution

The fourth proportional to 20,726,770.32, 28,603,310.76 and 11,558,428.56 is: 15,950,836.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,726,770.32 : 28,603,310.76 = 11,558,428.56 : x
  2. Step 2: Convert to fraction form
    20,726,770.32/28,603,310.76 = 11,558,428.56/x
  3. Step 3: Cross multiply
    20,726,770.32x = 28,603,310.76 × 11,558,428.56
  4. Step 4: Simplify right side
    20,726,770.32x = 330,609,323,998,939.31
  5. Step 5: Solve for x
    x = 330,609,323,998,939.31/20,726,770.32
  6. Step 6: Final answer
    x = 15,950,836.47

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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.