Finding the Fourth Proportional to 87,043,584.24, 120,121,136.52 and 49,873,118.88
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Solution
The fourth proportional to 87,043,584.24, 120,121,136.52 and 49,873,118.88 is: 68,825,471.45
Step by Step Solution
- Step 1: Write the proportion equation
87,043,584.24 : 120,121,136.52 = 49,873,118.88 : x - Step 2: Convert to fraction form
87,043,584.24/120,121,136.52 = 49,873,118.88/x - Step 3: Cross multiply
87,043,584.24x = 120,121,136.52 × 49,873,118.88 - Step 4: Simplify right side
87,043,584.24x = 5,990,815,721,662,670 - Step 5: Solve for x
x = 5,990,815,721,662,670/87,043,584.24 - Step 6: Final answer
x = 68,825,471.45
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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.