Home / 66,979,187.87-100,322,302.22-47,489,336.83

Finding the Fourth Proportional to 66,979,187.87, 100,322,302.22 and 47,489,336.83

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Solution

The fourth proportional to 66,979,187.87, 100,322,302.22 and 47,489,336.83 is: 71,130,148.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,979,187.87 : 100,322,302.22 = 47,489,336.83 : x
  2. Step 2: Convert to fraction form
    66,979,187.87/100,322,302.22 = 47,489,336.83/x
  3. Step 3: Cross multiply
    66,979,187.87x = 100,322,302.22 × 47,489,336.83
  4. Step 4: Simplify right side
    66,979,187.87x = 4,764,239,600,947,579
  5. Step 5: Solve for x
    x = 4,764,239,600,947,579/66,979,187.87
  6. Step 6: Final answer
    x = 71,130,148.82

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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.