Home / 232,590,661.08-320,977,264.92-128,172,469.20

Finding the Fourth Proportional to 232,590,661.08, 320,977,264.92 and 128,172,469.20

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Solution

The fourth proportional to 232,590,661.08, 320,977,264.92 and 128,172,469.20 is: 176,879,193.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,590,661.08 : 320,977,264.92 = 128,172,469.20 : x
  2. Step 2: Convert to fraction form
    232,590,661.08/320,977,264.92 = 128,172,469.20/x
  3. Step 3: Cross multiply
    232,590,661.08x = 320,977,264.92 × 128,172,469.20
  4. Step 4: Simplify right side
    232,590,661.08x = 41,140,448,601,858,944
  5. Step 5: Solve for x
    x = 41,140,448,601,858,944/232,590,661.08
  6. Step 6: Final answer
    x = 176,879,193.73

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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.