Home / 3,913,950.78-5,401,295.87-2,171,651.72

Finding the Fourth Proportional to 3,913,950.78, 5,401,295.87 and 2,171,651.72

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Solution

The fourth proportional to 3,913,950.78, 5,401,295.87 and 2,171,651.72 is: 2,996,903.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913,950.78 : 5,401,295.87 = 2,171,651.72 : x
  2. Step 2: Convert to fraction form
    3,913,950.78/5,401,295.87 = 2,171,651.72/x
  3. Step 3: Cross multiply
    3,913,950.78x = 5,401,295.87 × 2,171,651.72
  4. Step 4: Simplify right side
    3,913,950.78x = 11,729,733,428,449.66
  5. Step 5: Solve for x
    x = 11,729,733,428,449.66/3,913,950.78
  6. Step 6: Final answer
    x = 2,996,903.66

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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.