Home / 5,181,121.53-7,771,696.88-1,987,226.73

Finding the Fourth Proportional to 5,181,121.53, 7,771,696.88 and 1,987,226.73

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Solution

The fourth proportional to 5,181,121.53, 7,771,696.88 and 1,987,226.73 is: 2,980,845.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181,121.53 : 7,771,696.88 = 1,987,226.73 : x
  2. Step 2: Convert to fraction form
    5,181,121.53/7,771,696.88 = 1,987,226.73/x
  3. Step 3: Cross multiply
    5,181,121.53x = 7,771,696.88 × 1,987,226.73
  4. Step 4: Simplify right side
    5,181,121.53x = 15,444,123,767,457.47
  5. Step 5: Solve for x
    x = 15,444,123,767,457.47/5,181,121.53
  6. Step 6: Final answer
    x = 2,980,845.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.