Home / 38,561,661.29-53,216,071.94-21,158,001.90

Finding the Fourth Proportional to 38,561,661.29, 53,216,071.94 and 21,158,001.90

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Solution

The fourth proportional to 38,561,661.29, 53,216,071.94 and 21,158,001.90 is: 29,198,579.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,561,661.29 : 53,216,071.94 = 21,158,001.90 : x
  2. Step 2: Convert to fraction form
    38,561,661.29/53,216,071.94 = 21,158,001.90/x
  3. Step 3: Cross multiply
    38,561,661.29x = 53,216,071.94 × 21,158,001.90
  4. Step 4: Simplify right side
    38,561,661.29x = 1,125,945,751,269,951.75
  5. Step 5: Solve for x
    x = 1,125,945,751,269,951.75/38,561,661.29
  6. Step 6: Final answer
    x = 29,198,579.98

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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.