Home / 140,529,180.48-193,930,240.68-78,649,512.36

Finding the Fourth Proportional to 140,529,180.48, 193,930,240.68 and 78,649,512.36

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Solution

The fourth proportional to 140,529,180.48, 193,930,240.68 and 78,649,512.36 is: 108,536,311.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,529,180.48 : 193,930,240.68 = 78,649,512.36 : x
  2. Step 2: Convert to fraction form
    140,529,180.48/193,930,240.68 = 78,649,512.36/x
  3. Step 3: Cross multiply
    140,529,180.48x = 193,930,240.68 × 78,649,512.36
  4. Step 4: Simplify right side
    140,529,180.48x = 15,252,518,861,339,436
  5. Step 5: Solve for x
    x = 15,252,518,861,339,436/140,529,180.48
  6. Step 6: Final answer
    x = 108,536,311.17

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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.