Home / 128,757,946.60-192,633,035.10-83,408,314.60

Finding the Fourth Proportional to 128,757,946.60, 192,633,035.10 and 83,408,314.60

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Solution

The fourth proportional to 128,757,946.60, 192,633,035.10 and 83,408,314.60 is: 124,786,059.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,757,946.60 : 192,633,035.10 = 83,408,314.60 : x
  2. Step 2: Convert to fraction form
    128,757,946.60/192,633,035.10 = 83,408,314.60/x
  3. Step 3: Cross multiply
    128,757,946.60x = 192,633,035.10 × 83,408,314.60
  4. Step 4: Simplify right side
    128,757,946.60x = 16,067,196,793,973,640
  5. Step 5: Solve for x
    x = 16,067,196,793,973,640/128,757,946.60
  6. Step 6: Final answer
    x = 124,786,059.57

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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.