Home / 140,110,571.90-193,364,540.81-78,242,862.62

Finding the Fourth Proportional to 140,110,571.90, 193,364,540.81 and 78,242,862.62

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Solution

The fourth proportional to 140,110,571.90, 193,364,540.81 and 78,242,862.62 is: 107,981,824.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,110,571.90 : 193,364,540.81 = 78,242,862.62 : x
  2. Step 2: Convert to fraction form
    140,110,571.90/193,364,540.81 = 78,242,862.62/x
  3. Step 3: Cross multiply
    140,110,571.90x = 193,364,540.81 × 78,242,862.62
  4. Step 4: Simplify right side
    140,110,571.90x = 15,129,395,200,818,176
  5. Step 5: Solve for x
    x = 15,129,395,200,818,176/140,110,571.90
  6. Step 6: Final answer
    x = 107,981,824.61

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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.