Home / 7,131,853.88-10,697,387.05-5,214,729.68

Finding the Fourth Proportional to 7,131,853.88, 10,697,387.05 and 5,214,729.68

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Solution

The fourth proportional to 7,131,853.88, 10,697,387.05 and 5,214,729.68 is: 7,821,806.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131,853.88 : 10,697,387.05 = 5,214,729.68 : x
  2. Step 2: Convert to fraction form
    7,131,853.88/10,697,387.05 = 5,214,729.68/x
  3. Step 3: Cross multiply
    7,131,853.88x = 10,697,387.05 × 5,214,729.68
  4. Step 4: Simplify right side
    7,131,853.88x = 55,783,981,668,522.05
  5. Step 5: Solve for x
    x = 55,783,981,668,522.05/7,131,853.88
  6. Step 6: Final answer
    x = 7,821,806.59

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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.