Home / 21,121,339.10-29,142,452.22-11,953,981.85

Finding the Fourth Proportional to 21,121,339.10, 29,142,452.22 and 11,953,981.85

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Solution

The fourth proportional to 21,121,339.10, 29,142,452.22 and 11,953,981.85 is: 16,493,667.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,121,339.10 : 29,142,452.22 = 11,953,981.85 : x
  2. Step 2: Convert to fraction form
    21,121,339.10/29,142,452.22 = 11,953,981.85/x
  3. Step 3: Cross multiply
    21,121,339.10x = 29,142,452.22 × 11,953,981.85
  4. Step 4: Simplify right side
    21,121,339.10x = 348,368,344,756,659.94
  5. Step 5: Solve for x
    x = 348,368,344,756,659.94/21,121,339.10
  6. Step 6: Final answer
    x = 16,493,667.53

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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.