Home / 21,138,640.24-29,169,542.72-11,719,683.22

Finding the Fourth Proportional to 21,138,640.24, 29,169,542.72 and 11,719,683.22

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Solution

The fourth proportional to 21,138,640.24, 29,169,542.72 and 11,719,683.22 is: 16,172,175.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,138,640.24 : 29,169,542.72 = 11,719,683.22 : x
  2. Step 2: Convert to fraction form
    21,138,640.24/29,169,542.72 = 11,719,683.22/x
  3. Step 3: Cross multiply
    21,138,640.24x = 29,169,542.72 × 11,719,683.22
  4. Step 4: Simplify right side
    21,138,640.24x = 341,857,800,350,657.19
  5. Step 5: Solve for x
    x = 341,857,800,350,657.19/21,138,640.24
  6. Step 6: Final answer
    x = 16,172,175.53

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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.