Home / 5,171,097.66-7,757,176.20-1,978,908.72

Finding the Fourth Proportional to 5,171,097.66, 7,757,176.20 and 1,978,908.72

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Solution

The fourth proportional to 5,171,097.66, 7,757,176.20 and 1,978,908.72 is: 2,968,565.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171,097.66 : 7,757,176.20 = 1,978,908.72 : x
  2. Step 2: Convert to fraction form
    5,171,097.66/7,757,176.20 = 1,978,908.72/x
  3. Step 3: Cross multiply
    5,171,097.66x = 7,757,176.20 × 1,978,908.72
  4. Step 4: Simplify right side
    5,171,097.66x = 15,350,743,624,756.46
  5. Step 5: Solve for x
    x = 15,350,743,624,756.46/5,171,097.66
  6. Step 6: Final answer
    x = 2,968,565.79

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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.