Finding the Fourth Proportional to 11,821,043.76, 16,306,837.44 and 9,618,366.12
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Solution
The fourth proportional to 11,821,043.76, 16,306,837.44 and 9,618,366.12 is: 13,268,298.13
Step by Step Solution
- Step 1: Write the proportion equation
11,821,043.76 : 16,306,837.44 = 9,618,366.12 : x - Step 2: Convert to fraction form
11,821,043.76/16,306,837.44 = 9,618,366.12/x - Step 3: Cross multiply
11,821,043.76x = 16,306,837.44 × 9,618,366.12 - Step 4: Simplify right side
11,821,043.76x = 156,845,132,757,243.50 - Step 5: Solve for x
x = 156,845,132,757,243.50/11,821,043.76 - Step 6: Final answer
x = 13,268,298.13
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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.