Home / 115,546,533.21-159,186,227.22-80,684,003.61

Finding the Fourth Proportional to 115,546,533.21, 159,186,227.22 and 80,684,003.61

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Solution

The fourth proportional to 115,546,533.21, 159,186,227.22 and 80,684,003.61 is: 111,156,793.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,546,533.21 : 159,186,227.22 = 80,684,003.61 : x
  2. Step 2: Convert to fraction form
    115,546,533.21/159,186,227.22 = 80,684,003.61/x
  3. Step 3: Cross multiply
    115,546,533.21x = 159,186,227.22 × 80,684,003.61
  4. Step 4: Simplify right side
    115,546,533.21x = 12,843,782,131,680,760
  5. Step 5: Solve for x
    x = 12,843,782,131,680,760/115,546,533.21
  6. Step 6: Final answer
    x = 111,156,793.50

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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.