Home / 20,512,292.72-28,307,049.24-11,093,083.70

Finding the Fourth Proportional to 20,512,292.72, 28,307,049.24 and 11,093,083.70

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Solution

The fourth proportional to 20,512,292.72, 28,307,049.24 and 11,093,083.70 is: 15,308,501.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512,292.72 : 28,307,049.24 = 11,093,083.70 : x
  2. Step 2: Convert to fraction form
    20,512,292.72/28,307,049.24 = 11,093,083.70/x
  3. Step 3: Cross multiply
    20,512,292.72x = 28,307,049.24 × 11,093,083.70
  4. Step 4: Simplify right side
    20,512,292.72x = 314,012,466,590,109
  5. Step 5: Solve for x
    x = 314,012,466,590,109/20,512,292.72
  6. Step 6: Final answer
    x = 15,308,501.63

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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.