Finding the Fourth Proportional to 14,081,393, 19,428,990.36 and 7,969,821.68
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Solution
The fourth proportional to 14,081,393, 19,428,990.36 and 7,969,821.68 is: 10,996,468.08
Step by Step Solution
- Step 1: Write the proportion equation
14,081,393 : 19,428,990.36 = 7,969,821.68 : x - Step 2: Convert to fraction form
14,081,393/19,428,990.36 = 7,969,821.68/x - Step 3: Cross multiply
14,081,393x = 19,428,990.36 × 7,969,821.68 - Step 4: Simplify right side
14,081,393x = 154,845,588,591,639 - Step 5: Solve for x
x = 154,845,588,591,639/14,081,393 - Step 6: Final answer
x = 10,996,468.08
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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.