Finding the Fourth Proportional to 11,170,808.20, 16,756,212.30 and 3,990,449.80
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Solution
The fourth proportional to 11,170,808.20, 16,756,212.30 and 3,990,449.80 is: 5,985,674.70
Step by Step Solution
- Step 1: Write the proportion equation
11,170,808.20 : 16,756,212.30 = 3,990,449.80 : x - Step 2: Convert to fraction form
11,170,808.20/16,756,212.30 = 3,990,449.80/x - Step 3: Cross multiply
11,170,808.20x = 16,756,212.30 × 3,990,449.80 - Step 4: Simplify right side
11,170,808.20x = 66,864,824,021,292.54 - Step 5: Solve for x
x = 66,864,824,021,292.54/11,170,808.20 - Step 6: Final answer
x = 5,985,674.70
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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.