Home / 759,741,919.20-1,048,476,615.44-420,650,391.98

Finding the Fourth Proportional to 759,741,919.20, 1,048,476,615.44 and 420,650,391.98

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Solution

The fourth proportional to 759,741,919.20, 1,048,476,615.44 and 420,650,391.98 is: 580,515,683.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,741,919.20 : 1,048,476,615.44 = 420,650,391.98 : x
  2. Step 2: Convert to fraction form
    759,741,919.20/1,048,476,615.44 = 420,650,391.98/x
  3. Step 3: Cross multiply
    759,741,919.20x = 1,048,476,615.44 × 420,650,391.98
  4. Step 4: Simplify right side
    759,741,919.20x = 441,042,099,267,217,664
  5. Step 5: Solve for x
    x = 441,042,099,267,217,664/759,741,919.20
  6. Step 6: Final answer
    x = 580,515,683.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.