Home / 21,025,175.68-29,014,737.56-11,857,798.72

Finding the Fourth Proportional to 21,025,175.68, 29,014,737.56 and 11,857,798.72

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Solution

The fourth proportional to 21,025,175.68, 29,014,737.56 and 11,857,798.72 is: 16,363,759.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025,175.68 : 29,014,737.56 = 11,857,798.72 : x
  2. Step 2: Convert to fraction form
    21,025,175.68/29,014,737.56 = 11,857,798.72/x
  3. Step 3: Cross multiply
    21,025,175.68x = 29,014,737.56 × 11,857,798.72
  4. Step 4: Simplify right side
    21,025,175.68x = 344,050,917,900,103.94
  5. Step 5: Solve for x
    x = 344,050,917,900,103.94/21,025,175.68
  6. Step 6: Final answer
    x = 16,363,759.48

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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.