Home / 28,410,865.64-39,180,847.56-18,617,753

Finding the Fourth Proportional to 28,410,865.64, 39,180,847.56 and 18,617,753

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Solution

The fourth proportional to 28,410,865.64, 39,180,847.56 and 18,617,753 is: 25,675,364.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410,865.64 : 39,180,847.56 = 18,617,753 : x
  2. Step 2: Convert to fraction form
    28,410,865.64/39,180,847.56 = 18,617,753/x
  3. Step 3: Cross multiply
    28,410,865.64x = 39,180,847.56 × 18,617,753
  4. Step 4: Simplify right side
    28,410,865.64x = 729,459,342,202,732.75
  5. Step 5: Solve for x
    x = 729,459,342,202,732.75/28,410,865.64
  6. Step 6: Final answer
    x = 25,675,364.89

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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.