Home / 5,171,089.64-7,757,164.20-1,978,900.68

Finding the Fourth Proportional to 5,171,089.64, 7,757,164.20 and 1,978,900.68

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Solution

The fourth proportional to 5,171,089.64, 7,757,164.20 and 1,978,900.68 is: 2,968,553.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171,089.64 : 7,757,164.20 = 1,978,900.68 : x
  2. Step 2: Convert to fraction form
    5,171,089.64/7,757,164.20 = 1,978,900.68/x
  3. Step 3: Cross multiply
    5,171,089.64x = 7,757,164.20 × 1,978,900.68
  4. Step 4: Simplify right side
    5,171,089.64x = 15,350,657,510,251.66
  5. Step 5: Solve for x
    x = 15,350,657,510,251.66/5,171,089.64
  6. Step 6: Final answer
    x = 2,968,553.74

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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.