Home / 185,324,513.52-278,063,869.32-81,640,651.44

Finding the Fourth Proportional to 185,324,513.52, 278,063,869.32 and 81,640,651.44

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Solution

The fourth proportional to 185,324,513.52, 278,063,869.32 and 81,640,651.44 is: 122,494,941.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,324,513.52 : 278,063,869.32 = 81,640,651.44 : x
  2. Step 2: Convert to fraction form
    185,324,513.52/278,063,869.32 = 81,640,651.44/x
  3. Step 3: Cross multiply
    185,324,513.52x = 278,063,869.32 × 81,640,651.44
  4. Step 4: Simplify right side
    185,324,513.52x = 22,701,315,433,211,828
  5. Step 5: Solve for x
    x = 22,701,315,433,211,828/185,324,513.52
  6. Step 6: Final answer
    x = 122,494,941.45

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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.