Home / 38,382,840.62-52,968,191.46-20,979,175.76

Finding the Fourth Proportional to 38,382,840.62, 52,968,191.46 and 20,979,175.76

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Solution

The fourth proportional to 38,382,840.62, 52,968,191.46 and 20,979,175.76 is: 28,951,192.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,382,840.62 : 52,968,191.46 = 20,979,175.76 : x
  2. Step 2: Convert to fraction form
    38,382,840.62/52,968,191.46 = 20,979,175.76/x
  3. Step 3: Cross multiply
    38,382,840.62x = 52,968,191.46 × 20,979,175.76
  4. Step 4: Simplify right side
    38,382,840.62x = 1,111,228,998,328,671.12
  5. Step 5: Solve for x
    x = 1,111,228,998,328,671.12/38,382,840.62
  6. Step 6: Final answer
    x = 28,951,192.26

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1.5x scale

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.