Home / 21,061,215.43-29,063,919.76-11,768,861.85

Finding the Fourth Proportional to 21,061,215.43, 29,063,919.76 and 11,768,861.85

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Solution

The fourth proportional to 21,061,215.43, 29,063,919.76 and 11,768,861.85 is: 16,240,717.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,061,215.43 : 29,063,919.76 = 11,768,861.85 : x
  2. Step 2: Convert to fraction form
    21,061,215.43/29,063,919.76 = 11,768,861.85/x
  3. Step 3: Cross multiply
    21,061,215.43x = 29,063,919.76 × 11,768,861.85
  4. Step 4: Simplify right side
    21,061,215.43x = 342,049,256,474,925.19
  5. Step 5: Solve for x
    x = 342,049,256,474,925.19/21,061,215.43
  6. Step 6: Final answer
    x = 16,240,717.81

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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.