Finding the Fourth Proportional to 11,748,139.20, 16,211,620.49 and 6,520,736.14
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Solution
The fourth proportional to 11,748,139.20, 16,211,620.49 and 6,520,736.14 is: 8,998,165.39
Step by Step Solution
- Step 1: Write the proportion equation
11,748,139.20 : 16,211,620.49 = 6,520,736.14 : x - Step 2: Convert to fraction form
11,748,139.20/16,211,620.49 = 6,520,736.14/x - Step 3: Cross multiply
11,748,139.20x = 16,211,620.49 × 6,520,736.14 - Step 4: Simplify right side
11,748,139.20x = 105,711,699,560,276.62 - Step 5: Solve for x
x = 105,711,699,560,276.62/11,748,139.20 - Step 6: Final answer
x = 8,998,165.39
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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.