Finding the Fourth Proportional to 81,668,235.39, 122,558,930.82 and 32,479,047.87
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Solution
The fourth proportional to 81,668,235.39, 122,558,930.82 and 32,479,047.87 is: 48,741,072.49
Step by Step Solution
- Step 1: Write the proportion equation
81,668,235.39 : 122,558,930.82 = 32,479,047.87 : x - Step 2: Convert to fraction form
81,668,235.39/122,558,930.82 = 32,479,047.87/x - Step 3: Cross multiply
81,668,235.39x = 122,558,930.82 × 32,479,047.87 - Step 4: Simplify right side
81,668,235.39x = 3,980,597,380,998,798 - Step 5: Solve for x
x = 3,980,597,380,998,798/81,668,235.39 - Step 6: Final answer
x = 48,741,072.49
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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.