Home / 7,118,976.92-9,824,128.62-3,855,715.88

Finding the Fourth Proportional to 7,118,976.92, 9,824,128.62 and 3,855,715.88

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Solution

The fourth proportional to 7,118,976.92, 9,824,128.62 and 3,855,715.88 is: 5,320,855.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118,976.92 : 9,824,128.62 = 3,855,715.88 : x
  2. Step 2: Convert to fraction form
    7,118,976.92/9,824,128.62 = 3,855,715.88/x
  3. Step 3: Cross multiply
    7,118,976.92x = 9,824,128.62 × 3,855,715.88
  4. Step 4: Simplify right side
    7,118,976.92x = 37,879,048,727,296.48
  5. Step 5: Solve for x
    x = 37,879,048,727,296.48/7,118,976.92
  6. Step 6: Final answer
    x = 5,320,855.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.