Home / 87,631,190.87-120,297,784.86-75,219,736.91

Finding the Fourth Proportional to 87,631,190.87, 120,297,784.86 and 75,219,736.91

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Solution

The fourth proportional to 87,631,190.87, 120,297,784.86 and 75,219,736.91 is: 103,259,668.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,631,190.87 : 120,297,784.86 = 75,219,736.91 : x
  2. Step 2: Convert to fraction form
    87,631,190.87/120,297,784.86 = 75,219,736.91/x
  3. Step 3: Cross multiply
    87,631,190.87x = 120,297,784.86 × 75,219,736.91
  4. Step 4: Simplify right side
    87,631,190.87x = 9,048,767,727,648,882
  5. Step 5: Solve for x
    x = 9,048,767,727,648,882/87,631,190.87
  6. Step 6: Final answer
    x = 103,259,668.59

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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.