Home / 55,188,137.20-82,782,205.80-18,784,428.70

Finding the Fourth Proportional to 55,188,137.20, 82,782,205.80 and 18,784,428.70

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Solution

The fourth proportional to 55,188,137.20, 82,782,205.80 and 18,784,428.70 is: 28,176,643.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,188,137.20 : 82,782,205.80 = 18,784,428.70 : x
  2. Step 2: Convert to fraction form
    55,188,137.20/82,782,205.80 = 18,784,428.70/x
  3. Step 3: Cross multiply
    55,188,137.20x = 82,782,205.80 × 18,784,428.70
  4. Step 4: Simplify right side
    55,188,137.20x = 1,555,016,442,478,826.25
  5. Step 5: Solve for x
    x = 1,555,016,442,478,826.25/55,188,137.20
  6. Step 6: Final answer
    x = 28,176,643.05

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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.