Home / 21,478,584.70-29,640,523.66-11,689,146.23

Finding the Fourth Proportional to 21,478,584.70, 29,640,523.66 and 11,689,146.23

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Solution

The fourth proportional to 21,478,584.70, 29,640,523.66 and 11,689,146.23 is: 16,131,063.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,478,584.70 : 29,640,523.66 = 11,689,146.23 : x
  2. Step 2: Convert to fraction form
    21,478,584.70/29,640,523.66 = 11,689,146.23/x
  3. Step 3: Cross multiply
    21,478,584.70x = 29,640,523.66 × 11,689,146.23
  4. Step 4: Simplify right side
    21,478,584.70x = 346,472,415,440,393.25
  5. Step 5: Solve for x
    x = 346,472,415,440,393.25/21,478,584.70
  6. Step 6: Final answer
    x = 16,131,063.58

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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.