Home / 38,382,836.62-52,968,185.94-20,979,171.76

Finding the Fourth Proportional to 38,382,836.62, 52,968,185.94 and 20,979,171.76

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Solution

The fourth proportional to 38,382,836.62, 52,968,185.94 and 20,979,171.76 is: 28,951,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,382,836.62 : 52,968,185.94 = 20,979,171.76 : x
  2. Step 2: Convert to fraction form
    38,382,836.62/52,968,185.94 = 20,979,171.76/x
  3. Step 3: Cross multiply
    38,382,836.62x = 52,968,185.94 × 20,979,171.76
  4. Step 4: Simplify right side
    38,382,836.62x = 1,111,228,670,650,877.12
  5. Step 5: Solve for x
    x = 1,111,228,670,650,877.12/38,382,836.62
  6. Step 6: Final answer
    x = 28,951,186.74

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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.