Home / 38,382,837.62-52,968,187.32-20,979,172.76

Finding the Fourth Proportional to 38,382,837.62, 52,968,187.32 and 20,979,172.76

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Solution

The fourth proportional to 38,382,837.62, 52,968,187.32 and 20,979,172.76 is: 28,951,188.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,382,837.62 : 52,968,187.32 = 20,979,172.76 : x
  2. Step 2: Convert to fraction form
    38,382,837.62/52,968,187.32 = 20,979,172.76/x
  3. Step 3: Cross multiply
    38,382,837.62x = 52,968,187.32 × 20,979,172.76
  4. Step 4: Simplify right side
    38,382,837.62x = 1,111,228,752,570,321.50
  5. Step 5: Solve for x
    x = 1,111,228,752,570,321.50/38,382,837.62
  6. Step 6: Final answer
    x = 28,951,188.12

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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.