Home / 232,638,542.72-321,040,218.84-128,216,364.83

Finding the Fourth Proportional to 232,638,542.72, 321,040,218.84 and 128,216,364.83

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Solution

The fourth proportional to 232,638,542.72, 321,040,218.84 and 128,216,364.83 is: 176,938,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,638,542.72 : 321,040,218.84 = 128,216,364.83 : x
  2. Step 2: Convert to fraction form
    232,638,542.72/321,040,218.84 = 128,216,364.83/x
  3. Step 3: Cross multiply
    232,638,542.72x = 321,040,218.84 × 128,216,364.83
  4. Step 4: Simplify right side
    232,638,542.72x = 41,162,609,824,214,272
  5. Step 5: Solve for x
    x = 41,162,609,824,214,272/232,638,542.72
  6. Step 6: Final answer
    x = 176,938,048.80

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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.