Home / 118,568,800.89-163,642,129.20-68,323,243.77

Finding the Fourth Proportional to 118,568,800.89, 163,642,129.20 and 68,323,243.77

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Solution

The fourth proportional to 118,568,800.89, 163,642,129.20 and 68,323,243.77 is: 94,295,978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,568,800.89 : 163,642,129.20 = 68,323,243.77 : x
  2. Step 2: Convert to fraction form
    118,568,800.89/163,642,129.20 = 68,323,243.77/x
  3. Step 3: Cross multiply
    118,568,800.89x = 163,642,129.20 × 68,323,243.77
  4. Step 4: Simplify right side
    118,568,800.89x = 11,180,561,084,373,434
  5. Step 5: Solve for x
    x = 11,180,561,084,373,434/118,568,800.89
  6. Step 6: Final answer
    x = 94,295,978.37

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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.