Home / 140,110,571.15-193,364,539.77-78,242,861.87

Finding the Fourth Proportional to 140,110,571.15, 193,364,539.77 and 78,242,861.87

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Solution

The fourth proportional to 140,110,571.15, 193,364,539.77 and 78,242,861.87 is: 107,981,823.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,110,571.15 : 193,364,539.77 = 78,242,861.87 : x
  2. Step 2: Convert to fraction form
    140,110,571.15/193,364,539.77 = 78,242,861.87/x
  3. Step 3: Cross multiply
    140,110,571.15x = 193,364,539.77 × 78,242,861.87
  4. Step 4: Simplify right side
    140,110,571.15x = 15,129,394,975,780,234
  5. Step 5: Solve for x
    x = 15,129,394,975,780,234/140,110,571.15
  6. Step 6: Final answer
    x = 107,981,823.58

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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.