Finding the Fourth Proportional to 11,811,589.09, 16,299,989.54 and 6,379,081.09
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Solution
The fourth proportional to 11,811,589.09, 16,299,989.54 and 6,379,081.09 is: 8,803,130.06
Step by Step Solution
- Step 1: Write the proportion equation
11,811,589.09 : 16,299,989.54 = 6,379,081.09 : x - Step 2: Convert to fraction form
11,811,589.09/16,299,989.54 = 6,379,081.09/x - Step 3: Cross multiply
11,811,589.09x = 16,299,989.54 × 6,379,081.09 - Step 4: Simplify right side
11,811,589.09x = 103,978,954,993,087.98 - Step 5: Solve for x
x = 103,978,954,993,087.98/11,811,589.09 - Step 6: Final answer
x = 8,803,130.06
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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.