Finding the Fourth Proportional to 11,651,891.12, 16,080,485.40 and 6,757,070.72
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Solution
The fourth proportional to 11,651,891.12, 16,080,485.40 and 6,757,070.72 is: 9,325,265.40
Step by Step Solution
- Step 1: Write the proportion equation
11,651,891.12 : 16,080,485.40 = 6,757,070.72 : x - Step 2: Convert to fraction form
11,651,891.12/16,080,485.40 = 6,757,070.72/x - Step 3: Cross multiply
11,651,891.12x = 16,080,485.40 × 6,757,070.72 - Step 4: Simplify right side
11,651,891.12x = 108,656,977,059,727.48 - Step 5: Solve for x
x = 108,656,977,059,727.48/11,651,891.12 - Step 6: Final answer
x = 9,325,265.40
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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.