Home / 28,382,910.30-42,584,245.70-8,955,135.90

Finding the Fourth Proportional to 28,382,910.30, 42,584,245.70 and 8,955,135.90

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Solution

The fourth proportional to 28,382,910.30, 42,584,245.70 and 8,955,135.90 is: 13,435,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382,910.30 : 42,584,245.70 = 8,955,135.90 : x
  2. Step 2: Convert to fraction form
    28,382,910.30/42,584,245.70 = 8,955,135.90/x
  3. Step 3: Cross multiply
    28,382,910.30x = 42,584,245.70 × 8,955,135.90
  4. Step 4: Simplify right side
    28,382,910.30x = 381,347,707,397,715
  5. Step 5: Solve for x
    x = 381,347,707,397,715/28,382,910.30
  6. Step 6: Final answer
    x = 13,435,821.18

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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.