Home / 232,590,600.87-320,977,181.55-128,172,408.78

Finding the Fourth Proportional to 232,590,600.87, 320,977,181.55 and 128,172,408.78

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Solution

The fourth proportional to 232,590,600.87, 320,977,181.55 and 128,172,408.78 is: 176,879,110.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,590,600.87 : 320,977,181.55 = 128,172,408.78 : x
  2. Step 2: Convert to fraction form
    232,590,600.87/320,977,181.55 = 128,172,408.78/x
  3. Step 3: Cross multiply
    232,590,600.87x = 320,977,181.55 × 128,172,408.78
  4. Step 4: Simplify right side
    232,590,600.87x = 41,140,418,522,678,872
  5. Step 5: Solve for x
    x = 41,140,418,522,678,872/232,590,600.87
  6. Step 6: Final answer
    x = 176,879,110.20

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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.