Home / 71,542,477.80-107,313,716.70-66,759,508.80

Finding the Fourth Proportional to 71,542,477.80, 107,313,716.70 and 66,759,508.80

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Solution

The fourth proportional to 71,542,477.80, 107,313,716.70 and 66,759,508.80 is: 100,139,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,542,477.80 : 107,313,716.70 = 66,759,508.80 : x
  2. Step 2: Convert to fraction form
    71,542,477.80/107,313,716.70 = 66,759,508.80/x
  3. Step 3: Cross multiply
    71,542,477.80x = 107,313,716.70 × 66,759,508.80
  4. Step 4: Simplify right side
    71,542,477.80x = 7,164,211,014,394,357
  5. Step 5: Solve for x
    x = 7,164,211,014,394,357/71,542,477.80
  6. Step 6: Final answer
    x = 100,139,263.20

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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.