Home / 21,048,007.20-31,562,679.60-9,682,605.60

Finding the Fourth Proportional to 21,048,007.20, 31,562,679.60 and 9,682,605.60

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Solution

The fourth proportional to 21,048,007.20, 31,562,679.60 and 9,682,605.60 is: 14,519,615.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,048,007.20 : 31,562,679.60 = 9,682,605.60 : x
  2. Step 2: Convert to fraction form
    21,048,007.20/31,562,679.60 = 9,682,605.60/x
  3. Step 3: Cross multiply
    21,048,007.20x = 31,562,679.60 × 9,682,605.60
  4. Step 4: Simplify right side
    21,048,007.20x = 305,608,978,245,965.75
  5. Step 5: Solve for x
    x = 305,608,978,245,965.75/21,048,007.20
  6. Step 6: Final answer
    x = 14,519,615.82

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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.