Home / 232,590,600.12-320,977,180.52-128,172,408.03

Finding the Fourth Proportional to 232,590,600.12, 320,977,180.52 and 128,172,408.03

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Solution

The fourth proportional to 232,590,600.12, 320,977,180.52 and 128,172,408.03 is: 176,879,109.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,590,600.12 : 320,977,180.52 = 128,172,408.03 : x
  2. Step 2: Convert to fraction form
    232,590,600.12/320,977,180.52 = 128,172,408.03/x
  3. Step 3: Cross multiply
    232,590,600.12x = 320,977,180.52 × 128,172,408.03
  4. Step 4: Simplify right side
    232,590,600.12x = 41,140,418,149,287,544
  5. Step 5: Solve for x
    x = 41,140,418,149,287,544/232,590,600.12
  6. Step 6: Final answer
    x = 176,879,109.16

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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.