Home / 7,947,170.55-11,920,989.56-2,189,991.47

Finding the Fourth Proportional to 7,947,170.55, 11,920,989.56 and 2,189,991.47

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Solution

The fourth proportional to 7,947,170.55, 11,920,989.56 and 2,189,991.47 is: 3,285,051.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947,170.55 : 11,920,989.56 = 2,189,991.47 : x
  2. Step 2: Convert to fraction form
    7,947,170.55/11,920,989.56 = 2,189,991.47/x
  3. Step 3: Cross multiply
    7,947,170.55x = 11,920,989.56 × 2,189,991.47
  4. Step 4: Simplify right side
    7,947,170.55x = 26,106,865,379,804.14
  5. Step 5: Solve for x
    x = 26,106,865,379,804.14/7,947,170.55
  6. Step 6: Final answer
    x = 3,285,051.61

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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.