Home / 15,122,997.72-20,868,916.08-8,595,721.32

Finding the Fourth Proportional to 15,122,997.72, 20,868,916.08 and 8,595,721.32

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Solution

The fourth proportional to 15,122,997.72, 20,868,916.08 and 8,595,721.32 is: 11,861,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,122,997.72 : 20,868,916.08 = 8,595,721.32 : x
  2. Step 2: Convert to fraction form
    15,122,997.72/20,868,916.08 = 8,595,721.32/x
  3. Step 3: Cross multiply
    15,122,997.72x = 20,868,916.08 × 8,595,721.32
  4. Step 4: Simplify right side
    15,122,997.72x = 179,383,386,874,146.81
  5. Step 5: Solve for x
    x = 179,383,386,874,146.81/15,122,997.72
  6. Step 6: Final answer
    x = 11,861,628.90

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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.