Home / 82,530,821.80-123,796,232.70-75,476,434.60

Finding the Fourth Proportional to 82,530,821.80, 123,796,232.70 and 75,476,434.60

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Solution

The fourth proportional to 82,530,821.80, 123,796,232.70 and 75,476,434.60 is: 113,214,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,530,821.80 : 123,796,232.70 = 75,476,434.60 : x
  2. Step 2: Convert to fraction form
    82,530,821.80/123,796,232.70 = 75,476,434.60/x
  3. Step 3: Cross multiply
    82,530,821.80x = 123,796,232.70 × 75,476,434.60
  4. Step 4: Simplify right side
    82,530,821.80x = 9,343,698,261,107,930
  5. Step 5: Solve for x
    x = 9,343,698,261,107,930/82,530,821.80
  6. Step 6: Final answer
    x = 113,214,651.90

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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.