Home / 18,968,951.29-28,453,447.46-8,878,658.17

Finding the Fourth Proportional to 18,968,951.29, 28,453,447.46 and 8,878,658.17

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Solution

The fourth proportional to 18,968,951.29, 28,453,447.46 and 8,878,658.17 is: 13,317,996.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968,951.29 : 28,453,447.46 = 8,878,658.17 : x
  2. Step 2: Convert to fraction form
    18,968,951.29/28,453,447.46 = 8,878,658.17/x
  3. Step 3: Cross multiply
    18,968,951.29x = 28,453,447.46 × 8,878,658.17
  4. Step 4: Simplify right side
    18,968,951.29x = 252,628,433,755,394.75
  5. Step 5: Solve for x
    x = 252,628,433,755,394.75/18,968,951.29
  6. Step 6: Final answer
    x = 13,317,996.86

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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.