Home / 139,353,757.85-192,320,440.95-76,640,905.59

Finding the Fourth Proportional to 139,353,757.85, 192,320,440.95 and 76,640,905.59

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Solution

The fourth proportional to 139,353,757.85, 192,320,440.95 and 76,640,905.59 is: 105,771,189.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,353,757.85 : 192,320,440.95 = 76,640,905.59 : x
  2. Step 2: Convert to fraction form
    139,353,757.85/192,320,440.95 = 76,640,905.59/x
  3. Step 3: Cross multiply
    139,353,757.85x = 192,320,440.95 × 76,640,905.59
  4. Step 4: Simplify right side
    139,353,757.85x = 14,739,612,757,876,120
  5. Step 5: Solve for x
    x = 14,739,612,757,876,120/139,353,757.85
  6. Step 6: Final answer
    x = 105,771,189.71

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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.