Home / 20,324,300.72-28,046,809.32-11,503,562.72

Finding the Fourth Proportional to 20,324,300.72, 28,046,809.32 and 11,503,562.72

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Solution

The fourth proportional to 20,324,300.72, 28,046,809.32 and 11,503,562.72 is: 15,874,505.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,324,300.72 : 28,046,809.32 = 11,503,562.72 : x
  2. Step 2: Convert to fraction form
    20,324,300.72/28,046,809.32 = 11,503,562.72/x
  3. Step 3: Cross multiply
    20,324,300.72x = 28,046,809.32 × 11,503,562.72
  4. Step 4: Simplify right side
    20,324,300.72x = 322,638,230,108,500.56
  5. Step 5: Solve for x
    x = 322,638,230,108,500.56/20,324,300.72
  6. Step 6: Final answer
    x = 15,874,505.82

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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.