Home / 232,590,600.37-320,977,180.86-128,172,408.28

Finding the Fourth Proportional to 232,590,600.37, 320,977,180.86 and 128,172,408.28

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Solution

The fourth proportional to 232,590,600.37, 320,977,180.86 and 128,172,408.28 is: 176,879,109.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,590,600.37 : 320,977,180.86 = 128,172,408.28 : x
  2. Step 2: Convert to fraction form
    232,590,600.37/320,977,180.86 = 128,172,408.28/x
  3. Step 3: Cross multiply
    232,590,600.37x = 320,977,180.86 × 128,172,408.28
  4. Step 4: Simplify right side
    232,590,600.37x = 41,140,418,273,751,320
  5. Step 5: Solve for x
    x = 41,140,418,273,751,320/232,590,600.37
  6. Step 6: Final answer
    x = 176,879,109.51

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1.5x scale

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.