Home / 38,561,696.77-53,216,120.78-21,158,037.38

Finding the Fourth Proportional to 38,561,696.77, 53,216,120.78 and 21,158,037.38

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Solution

The fourth proportional to 38,561,696.77, 53,216,120.78 and 21,158,037.38 is: 29,198,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,561,696.77 : 53,216,120.78 = 21,158,037.38 : x
  2. Step 2: Convert to fraction form
    38,561,696.77/53,216,120.78 = 21,158,037.38/x
  3. Step 3: Cross multiply
    38,561,696.77x = 53,216,120.78 × 21,158,037.38
  4. Step 4: Simplify right side
    38,561,696.77x = 1,125,948,672,681,834.75
  5. Step 5: Solve for x
    x = 1,125,948,672,681,834.75/38,561,696.77
  6. Step 6: Final answer
    x = 29,198,628.87

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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.