Home / 28,410,856.11-39,180,834.51-18,617,743.50

Finding the Fourth Proportional to 28,410,856.11, 39,180,834.51 and 18,617,743.50

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Solution

The fourth proportional to 28,410,856.11, 39,180,834.51 and 18,617,743.50 is: 25,675,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,410,856.11 : 39,180,834.51 = 18,617,743.50 : x
  2. Step 2: Convert to fraction form
    28,410,856.11/39,180,834.51 = 18,617,743.50/x
  3. Step 3: Cross multiply
    28,410,856.11x = 39,180,834.51 × 18,617,743.50
  4. Step 4: Simplify right side
    28,410,856.11x = 729,458,727,023,128.12
  5. Step 5: Solve for x
    x = 729,458,727,023,128.12/28,410,856.11
  6. Step 6: Final answer
    x = 25,675,351.85

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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.