Home / 3,791,881.92-5,686,666.20-1,993,789.92

Finding the Fourth Proportional to 3,791,881.92, 5,686,666.20 and 1,993,789.92

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Solution

The fourth proportional to 3,791,881.92, 5,686,666.20 and 1,993,789.92 is: 2,990,076.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,791,881.92 : 5,686,666.20 = 1,993,789.92 : x
  2. Step 2: Convert to fraction form
    3,791,881.92/5,686,666.20 = 1,993,789.92/x
  3. Step 3: Cross multiply
    3,791,881.92x = 5,686,666.20 × 1,993,789.92
  4. Step 4: Simplify right side
    3,791,881.92x = 11,338,017,747,964.70
  5. Step 5: Solve for x
    x = 11,338,017,747,964.70/3,791,881.92
  6. Step 6: Final answer
    x = 2,990,076.69

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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.