Home / 5,178,881.11-7,147,281.56-2,856,228.01

Finding the Fourth Proportional to 5,178,881.11, 7,147,281.56 and 2,856,228.01

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Solution

The fourth proportional to 5,178,881.11, 7,147,281.56 and 2,856,228.01 is: 3,941,829.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,881.11 : 7,147,281.56 = 2,856,228.01 : x
  2. Step 2: Convert to fraction form
    5,178,881.11/7,147,281.56 = 2,856,228.01/x
  3. Step 3: Cross multiply
    5,178,881.11x = 7,147,281.56 × 2,856,228.01
  4. Step 4: Simplify right side
    5,178,881.11x = 20,414,265,787,028.49
  5. Step 5: Solve for x
    x = 20,414,265,787,028.49/5,178,881.11
  6. Step 6: Final answer
    x = 3,941,829.39

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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.