Home / 3,911,973.78-5,398,443.38-2,169,361.96

Finding the Fourth Proportional to 3,911,973.78, 5,398,443.38 and 2,169,361.96

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Solution

The fourth proportional to 3,911,973.78, 5,398,443.38 and 2,169,361.96 is: 2,993,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,911,973.78 : 5,398,443.38 = 2,169,361.96 : x
  2. Step 2: Convert to fraction form
    3,911,973.78/5,398,443.38 = 2,169,361.96/x
  3. Step 3: Cross multiply
    3,911,973.78x = 5,398,443.38 × 2,169,361.96
  4. Step 4: Simplify right side
    3,911,973.78x = 11,711,177,711,785.82
  5. Step 5: Solve for x
    x = 11,711,177,711,785.82/3,911,973.78
  6. Step 6: Final answer
    x = 2,993,674.90

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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.