Finding the Fourth Proportional to 248,144,195.20, 372,230,289.60 and 75,626,636.80
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Solution
The fourth proportional to 248,144,195.20, 372,230,289.60 and 75,626,636.80 is: 113,444,220.99
Step by Step Solution
- Step 1: Write the proportion equation
248,144,195.20 : 372,230,289.60 = 75,626,636.80 : x - Step 2: Convert to fraction form
248,144,195.20/372,230,289.60 = 75,626,636.80/x - Step 3: Cross multiply
248,144,195.20x = 372,230,289.60 × 75,626,636.80 - Step 4: Simplify right side
248,144,195.20x = 28,150,524,917,538,016 - Step 5: Solve for x
x = 28,150,524,917,538,016/248,144,195.20 - Step 6: Final answer
x = 113,444,220.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.