Home / 28,383,397.43-39,186,103.28-18,610,889.36

Finding the Fourth Proportional to 28,383,397.43, 39,186,103.28 and 18,610,889.36

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Solution

The fourth proportional to 28,383,397.43, 39,186,103.28 and 18,610,889.36 is: 25,694,183.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383,397.43 : 39,186,103.28 = 18,610,889.36 : x
  2. Step 2: Convert to fraction form
    28,383,397.43/39,186,103.28 = 18,610,889.36/x
  3. Step 3: Cross multiply
    28,383,397.43x = 39,186,103.28 × 18,610,889.36
  4. Step 4: Simplify right side
    28,383,397.43x = 729,288,232,304,628.12
  5. Step 5: Solve for x
    x = 729,288,232,304,628.12/28,383,397.43
  6. Step 6: Final answer
    x = 25,694,183.87

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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.