Home / 12,131,705.07-18,188,568.90-5,734,482.21

Finding the Fourth Proportional to 12,131,705.07, 18,188,568.90 and 5,734,482.21

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Solution

The fourth proportional to 12,131,705.07, 18,188,568.90 and 5,734,482.21 is: 8,597,474.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131,705.07 : 18,188,568.90 = 5,734,482.21 : x
  2. Step 2: Convert to fraction form
    12,131,705.07/18,188,568.90 = 5,734,482.21/x
  3. Step 3: Cross multiply
    12,131,705.07x = 18,188,568.90 × 5,734,482.21
  4. Step 4: Simplify right side
    12,131,705.07x = 104,302,024,782,409.27
  5. Step 5: Solve for x
    x = 104,302,024,782,409.27/12,131,705.07
  6. Step 6: Final answer
    x = 8,597,474.48

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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.