Home / 20,562,817.70-28,377,817.90-11,395,263.62

Finding the Fourth Proportional to 20,562,817.70, 28,377,817.90 and 11,395,263.62

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Solution

The fourth proportional to 20,562,817.70, 28,377,817.90 and 11,395,263.62 is: 15,726,089.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,562,817.70 : 28,377,817.90 = 11,395,263.62 : x
  2. Step 2: Convert to fraction form
    20,562,817.70/28,377,817.90 = 11,395,263.62/x
  3. Step 3: Cross multiply
    20,562,817.70x = 28,377,817.90 × 11,395,263.62
  4. Step 4: Simplify right side
    20,562,817.70x = 323,372,715,930,854.75
  5. Step 5: Solve for x
    x = 323,372,715,930,854.75/20,562,817.70
  6. Step 6: Final answer
    x = 15,726,089.71

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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.