Home / 42,784,163.72-64,195,841.18-18,530,508.68

Finding the Fourth Proportional to 42,784,163.72, 64,195,841.18 and 18,530,508.68

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Solution

The fourth proportional to 42,784,163.72, 64,195,841.18 and 18,530,508.68 is: 27,804,250.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,784,163.72 : 64,195,841.18 = 18,530,508.68 : x
  2. Step 2: Convert to fraction form
    42,784,163.72/64,195,841.18 = 18,530,508.68/x
  3. Step 3: Cross multiply
    42,784,163.72x = 64,195,841.18 × 18,530,508.68
  4. Step 4: Simplify right side
    42,784,163.72x = 1,189,581,592,205,891.50
  5. Step 5: Solve for x
    x = 1,189,581,592,205,891.50/42,784,163.72
  6. Step 6: Final answer
    x = 27,804,250.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.