Home / 20,372,709.45-28,114,870.92-11,205,592.77

Finding the Fourth Proportional to 20,372,709.45, 28,114,870.92 and 11,205,592.77

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Solution

The fourth proportional to 20,372,709.45, 28,114,870.92 and 11,205,592.77 is: 15,464,010.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372,709.45 : 28,114,870.92 = 11,205,592.77 : x
  2. Step 2: Convert to fraction form
    20,372,709.45/28,114,870.92 = 11,205,592.77/x
  3. Step 3: Cross multiply
    20,372,709.45x = 28,114,870.92 × 11,205,592.77
  4. Step 4: Simplify right side
    20,372,709.45x = 315,043,794,310,635.25
  5. Step 5: Solve for x
    x = 315,043,794,310,635.25/20,372,709.45
  6. Step 6: Final answer
    x = 15,464,010.57

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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.