Home / 128,757,945.60-192,633,033.60-83,408,313.60

Finding the Fourth Proportional to 128,757,945.60, 192,633,033.60 and 83,408,313.60

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Solution

The fourth proportional to 128,757,945.60, 192,633,033.60 and 83,408,313.60 is: 124,786,058.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,757,945.60 : 192,633,033.60 = 83,408,313.60 : x
  2. Step 2: Convert to fraction form
    128,757,945.60/192,633,033.60 = 83,408,313.60/x
  3. Step 3: Cross multiply
    128,757,945.60x = 192,633,033.60 × 83,408,313.60
  4. Step 4: Simplify right side
    128,757,945.60x = 16,067,196,476,228,136
  5. Step 5: Solve for x
    x = 16,067,196,476,228,136/128,757,945.60
  6. Step 6: Final answer
    x = 124,786,058.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.