Finding the Fourth Proportional to 12,129,336.94, 16,738,717.98 and 6,622,930.12
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Solution
The fourth proportional to 12,129,336.94, 16,738,717.98 and 6,622,930.12 is: 9,139,770.79
Step by Step Solution
- Step 1: Write the proportion equation
12,129,336.94 : 16,738,717.98 = 6,622,930.12 : x - Step 2: Convert to fraction form
12,129,336.94/16,738,717.98 = 6,622,930.12/x - Step 3: Cross multiply
12,129,336.94x = 16,738,717.98 × 6,622,930.12 - Step 4: Simplify right side
12,129,336.94x = 110,859,359,479,927.56 - Step 5: Solve for x
x = 110,859,359,479,927.56/12,129,336.94 - Step 6: Final answer
x = 9,139,770.79
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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.