Home / 8,520,770.40-12,789,028.80-4,263,993.60

Finding the Fourth Proportional to 8,520,770.40, 12,789,028.80 and 4,263,993.60

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Solution

The fourth proportional to 8,520,770.40, 12,789,028.80 and 4,263,993.60 is: 6,399,930.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,770.40 : 12,789,028.80 = 4,263,993.60 : x
  2. Step 2: Convert to fraction form
    8,520,770.40/12,789,028.80 = 4,263,993.60/x
  3. Step 3: Cross multiply
    8,520,770.40x = 12,789,028.80 × 4,263,993.60
  4. Step 4: Simplify right side
    8,520,770.40x = 54,532,336,953,415.68
  5. Step 5: Solve for x
    x = 54,532,336,953,415.68/8,520,770.40
  6. Step 6: Final answer
    x = 6,399,930.33

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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.