Home / 3,913,952.78-5,401,298.63-2,171,653.72

Finding the Fourth Proportional to 3,913,952.78, 5,401,298.63 and 2,171,653.72

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Solution

The fourth proportional to 3,913,952.78, 5,401,298.63 and 2,171,653.72 is: 2,996,906.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913,952.78 : 5,401,298.63 = 2,171,653.72 : x
  2. Step 2: Convert to fraction form
    3,913,952.78/5,401,298.63 = 2,171,653.72/x
  3. Step 3: Cross multiply
    3,913,952.78x = 5,401,298.63 × 2,171,653.72
  4. Step 4: Simplify right side
    3,913,952.78x = 11,729,750,262,670.40
  5. Step 5: Solve for x
    x = 11,729,750,262,670.40/3,913,952.78
  6. Step 6: Final answer
    x = 2,996,906.43

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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.