Home / 21,329,418.15-31,997,445.39-6,949,139.85

Finding the Fourth Proportional to 21,329,418.15, 31,997,445.39 and 6,949,139.85

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Solution

The fourth proportional to 21,329,418.15, 31,997,445.39 and 6,949,139.85 is: 10,424,790.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329,418.15 : 31,997,445.39 = 6,949,139.85 : x
  2. Step 2: Convert to fraction form
    21,329,418.15/31,997,445.39 = 6,949,139.85/x
  3. Step 3: Cross multiply
    21,329,418.15x = 31,997,445.39 × 6,949,139.85
  4. Step 4: Simplify right side
    21,329,418.15x = 222,354,722,857,847.78
  5. Step 5: Solve for x
    x = 222,354,722,857,847.78/21,329,418.15
  6. Step 6: Final answer
    x = 10,424,790.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.