Home / 18,968,951.79-28,453,448.21-8,878,658.67

Finding the Fourth Proportional to 18,968,951.79, 28,453,448.21 and 8,878,658.67

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Solution

The fourth proportional to 18,968,951.79, 28,453,448.21 and 8,878,658.67 is: 13,317,997.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968,951.79 : 28,453,448.21 = 8,878,658.67 : x
  2. Step 2: Convert to fraction form
    18,968,951.79/28,453,448.21 = 8,878,658.67/x
  3. Step 3: Cross multiply
    18,968,951.79x = 28,453,448.21 × 8,878,658.67
  4. Step 4: Simplify right side
    18,968,951.79x = 252,628,454,641,112.50
  5. Step 5: Solve for x
    x = 252,628,454,641,112.50/18,968,951.79
  6. Step 6: Final answer
    x = 13,317,997.61

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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.