Home / 20,859,529-28,786,212.90-11,567,753.32

Finding the Fourth Proportional to 20,859,529, 28,786,212.90 and 11,567,753.32

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Solution

The fourth proportional to 20,859,529, 28,786,212.90 and 11,567,753.32 is: 15,963,534.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,859,529 : 28,786,212.90 = 11,567,753.32 : x
  2. Step 2: Convert to fraction form
    20,859,529/28,786,212.90 = 11,567,753.32/x
  3. Step 3: Cross multiply
    20,859,529x = 28,786,212.90 × 11,567,753.32
  4. Step 4: Simplify right side
    20,859,529x = 332,991,809,844,201.81
  5. Step 5: Solve for x
    x = 332,991,809,844,201.81/20,859,529
  6. Step 6: Final answer
    x = 15,963,534.45

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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.