Home / 3,902,280.12-5,385,290.72-2,136,302.20

Finding the Fourth Proportional to 3,902,280.12, 5,385,290.72 and 2,136,302.20

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Solution

The fourth proportional to 3,902,280.12, 5,385,290.72 and 2,136,302.20 is: 2,948,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902,280.12 : 5,385,290.72 = 2,136,302.20 : x
  2. Step 2: Convert to fraction form
    3,902,280.12/5,385,290.72 = 2,136,302.20/x
  3. Step 3: Cross multiply
    3,902,280.12x = 5,385,290.72 × 2,136,302.20
  4. Step 4: Simplify right side
    3,902,280.12x = 11,504,608,412,775.58
  5. Step 5: Solve for x
    x = 11,504,608,412,775.58/3,902,280.12
  6. Step 6: Final answer
    x = 2,948,175.95

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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.