Home / 82,186,109.20-123,043,234.20-79,826,813.20

Finding the Fourth Proportional to 82,186,109.20, 123,043,234.20 and 79,826,813.20

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Solution

The fourth proportional to 82,186,109.20, 123,043,234.20 and 79,826,813.20 is: 119,511,062.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,186,109.20 : 123,043,234.20 = 79,826,813.20 : x
  2. Step 2: Convert to fraction form
    82,186,109.20/123,043,234.20 = 79,826,813.20/x
  3. Step 3: Cross multiply
    82,186,109.20x = 123,043,234.20 × 79,826,813.20
  4. Step 4: Simplify right side
    82,186,109.20x = 9,822,149,272,007,252
  5. Step 5: Solve for x
    x = 9,822,149,272,007,252/82,186,109.20
  6. Step 6: Final answer
    x = 119,511,062.97

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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.