Home / 78,515,865.11-108,352,695.69-43,236,950.87

Finding the Fourth Proportional to 78,515,865.11, 108,352,695.69 and 43,236,950.87

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Solution

The fourth proportional to 78,515,865.11, 108,352,695.69 and 43,236,950.87 is: 59,667,433.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,515,865.11 : 108,352,695.69 = 43,236,950.87 : x
  2. Step 2: Convert to fraction form
    78,515,865.11/108,352,695.69 = 43,236,950.87/x
  3. Step 3: Cross multiply
    78,515,865.11x = 108,352,695.69 × 43,236,950.87
  4. Step 4: Simplify right side
    78,515,865.11x = 4,684,840,180,467,005
  5. Step 5: Solve for x
    x = 4,684,840,180,467,005/78,515,865.11
  6. Step 6: Final answer
    x = 59,667,433.76

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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.