Home / 3,830,557.38-5,286,185.20-2,111,640.18

Finding the Fourth Proportional to 3,830,557.38, 5,286,185.20 and 2,111,640.18

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Solution

The fourth proportional to 3,830,557.38, 5,286,185.20 and 2,111,640.18 is: 2,914,072.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,830,557.38 : 5,286,185.20 = 2,111,640.18 : x
  2. Step 2: Convert to fraction form
    3,830,557.38/5,286,185.20 = 2,111,640.18/x
  3. Step 3: Cross multiply
    3,830,557.38x = 5,286,185.20 × 2,111,640.18
  4. Step 4: Simplify right side
    3,830,557.38x = 11,162,521,067,241.34
  5. Step 5: Solve for x
    x = 11,162,521,067,241.34/3,830,557.38
  6. Step 6: Final answer
    x = 2,914,072.28

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Double scale
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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.