Home / 15,589,082.72-21,512,488.79-8,619,640.22

Finding the Fourth Proportional to 15,589,082.72, 21,512,488.79 and 8,619,640.22

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Solution

The fourth proportional to 15,589,082.72, 21,512,488.79 and 8,619,640.22 is: 11,894,857.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,589,082.72 : 21,512,488.79 = 8,619,640.22 : x
  2. Step 2: Convert to fraction form
    15,589,082.72/21,512,488.79 = 8,619,640.22/x
  3. Step 3: Cross multiply
    15,589,082.72x = 21,512,488.79 × 8,619,640.22
  4. Step 4: Simplify right side
    15,589,082.72x = 185,429,913,455,922.50
  5. Step 5: Solve for x
    x = 185,429,913,455,922.50/15,589,082.72
  6. Step 6: Final answer
    x = 11,894,857.24

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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.