Home / 2,111,923.78-3,168,201.79-764,401.66

Finding the Fourth Proportional to 2,111,923.78, 3,168,201.79 and 764,401.66

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Solution

The fourth proportional to 2,111,923.78, 3,168,201.79 and 764,401.66 is: 1,146,716.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,111,923.78 : 3,168,201.79 = 764,401.66 : x
  2. Step 2: Convert to fraction form
    2,111,923.78/3,168,201.79 = 764,401.66/x
  3. Step 3: Cross multiply
    2,111,923.78x = 3,168,201.79 × 764,401.66
  4. Step 4: Simplify right side
    2,111,923.78x = 2,421,778,707,490.97
  5. Step 5: Solve for x
    x = 2,421,778,707,490.97/2,111,923.78
  6. Step 6: Final answer
    x = 1,146,716.91

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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.