Home / 47,849,449.20-71,790,762.60-20,942,415.60

Finding the Fourth Proportional to 47,849,449.20, 71,790,762.60 and 20,942,415.60

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Solution

The fourth proportional to 47,849,449.20, 71,790,762.60 and 20,942,415.60 is: 31,420,883.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,849,449.20 : 71,790,762.60 = 20,942,415.60 : x
  2. Step 2: Convert to fraction form
    47,849,449.20/71,790,762.60 = 20,942,415.60/x
  3. Step 3: Cross multiply
    47,849,449.20x = 71,790,762.60 × 20,942,415.60
  4. Step 4: Simplify right side
    47,849,449.20x = 1,503,471,986,610,136.50
  5. Step 5: Solve for x
    x = 1,503,471,986,610,136.50/47,849,449.20
  6. Step 6: Final answer
    x = 31,420,883.87

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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.