Home / 7,879,221.75-11,818,832.81-1,895,589.75

Finding the Fourth Proportional to 7,879,221.75, 11,818,832.81 and 1,895,589.75

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Solution

The fourth proportional to 7,879,221.75, 11,818,832.81 and 1,895,589.75 is: 2,843,384.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879,221.75 : 11,818,832.81 = 1,895,589.75 : x
  2. Step 2: Convert to fraction form
    7,879,221.75/11,818,832.81 = 1,895,589.75/x
  3. Step 3: Cross multiply
    7,879,221.75x = 11,818,832.81 × 1,895,589.75
  4. Step 4: Simplify right side
    7,879,221.75x = 22,403,658,322,121.75
  5. Step 5: Solve for x
    x = 22,403,658,322,121.75/7,879,221.75
  6. Step 6: Final answer
    x = 2,843,384.67

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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.