Home / 641,793,863.40-962,782,203.82-199,174,784.74

Finding the Fourth Proportional to 641,793,863.40, 962,782,203.82 and 199,174,784.74

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Solution

The fourth proportional to 641,793,863.40, 962,782,203.82 and 199,174,784.74 is: 298,790,544.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,793,863.40 : 962,782,203.82 = 199,174,784.74 : x
  2. Step 2: Convert to fraction form
    641,793,863.40/962,782,203.82 = 199,174,784.74/x
  3. Step 3: Cross multiply
    641,793,863.40x = 962,782,203.82 × 199,174,784.74
  4. Step 4: Simplify right side
    641,793,863.40x = 191,761,938,197,351,328
  5. Step 5: Solve for x
    x = 191,761,938,197,351,328/641,793,863.40
  6. Step 6: Final answer
    x = 298,790,544.96

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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.