Home / 87,540,409.92-120,820,766.76-50,892,238.56

Finding the Fourth Proportional to 87,540,409.92, 120,820,766.76 and 50,892,238.56

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Solution

The fourth proportional to 87,540,409.92, 120,820,766.76 and 50,892,238.56 is: 70,240,010.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,540,409.92 : 120,820,766.76 = 50,892,238.56 : x
  2. Step 2: Convert to fraction form
    87,540,409.92/120,820,766.76 = 50,892,238.56/x
  3. Step 3: Cross multiply
    87,540,409.92x = 120,820,766.76 × 50,892,238.56
  4. Step 4: Simplify right side
    87,540,409.92x = 6,148,839,284,952,039
  5. Step 5: Solve for x
    x = 6,148,839,284,952,039/87,540,409.92
  6. Step 6: Final answer
    x = 70,240,010.19

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1.5x scale

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.