Home / 71,168,081.66-106,756,806.44-18,647,039.15

Finding the Fourth Proportional to 71,168,081.66, 106,756,806.44 and 18,647,039.15

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Solution

The fourth proportional to 71,168,081.66, 106,756,806.44 and 18,647,039.15 is: 27,971,785.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,168,081.66 : 106,756,806.44 = 18,647,039.15 : x
  2. Step 2: Convert to fraction form
    71,168,081.66/106,756,806.44 = 18,647,039.15/x
  3. Step 3: Cross multiply
    71,168,081.66x = 106,756,806.44 × 18,647,039.15
  4. Step 4: Simplify right side
    71,168,081.66x = 1,990,698,349,122,416.75
  5. Step 5: Solve for x
    x = 1,990,698,349,122,416.75/71,168,081.66
  6. Step 6: Final answer
    x = 27,971,785.98

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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.