Home / 87,631,190.37-120,297,784.17-75,219,736.41

Finding the Fourth Proportional to 87,631,190.37, 120,297,784.17 and 75,219,736.41

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Solution

The fourth proportional to 87,631,190.37, 120,297,784.17 and 75,219,736.41 is: 103,259,667.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,631,190.37 : 120,297,784.17 = 75,219,736.41 : x
  2. Step 2: Convert to fraction form
    87,631,190.37/120,297,784.17 = 75,219,736.41/x
  3. Step 3: Cross multiply
    87,631,190.37x = 120,297,784.17 × 75,219,736.41
  4. Step 4: Simplify right side
    87,631,190.37x = 9,048,767,615,974,470
  5. Step 5: Solve for x
    x = 9,048,767,615,974,470/87,631,190.37
  6. Step 6: Final answer
    x = 103,259,667.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.