Home / 18,927,405.98-28,379,738.85-7,399,142.84

Finding the Fourth Proportional to 18,927,405.98, 28,379,738.85 and 7,399,142.84

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Solution

The fourth proportional to 18,927,405.98, 28,379,738.85 and 7,399,142.84 is: 11,094,269.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,927,405.98 : 28,379,738.85 = 7,399,142.84 : x
  2. Step 2: Convert to fraction form
    18,927,405.98/28,379,738.85 = 7,399,142.84/x
  3. Step 3: Cross multiply
    18,927,405.98x = 28,379,738.85 × 7,399,142.84
  4. Step 4: Simplify right side
    18,927,405.98x = 209,985,741,556,249.91
  5. Step 5: Solve for x
    x = 209,985,741,556,249.91/18,927,405.98
  6. Step 6: Final answer
    x = 11,094,269.43

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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.