Finding the Fourth Proportional to 11,861,538.12, 17,771,990.76 and 6,473,965.68
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Solution
The fourth proportional to 11,861,538.12, 17,771,990.76 and 6,473,965.68 is: 9,699,859.92
Step by Step Solution
- Step 1: Write the proportion equation
11,861,538.12 : 17,771,990.76 = 6,473,965.68 : x - Step 2: Convert to fraction form
11,861,538.12/17,771,990.76 = 6,473,965.68/x - Step 3: Cross multiply
11,861,538.12x = 17,771,990.76 × 6,473,965.68 - Step 4: Simplify right side
11,861,538.12x = 115,055,258,245,517.12 - Step 5: Solve for x
x = 115,055,258,245,517.12/11,861,538.12 - Step 6: Final answer
x = 9,699,859.92
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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.