Finding the Fourth Proportional to 7,678,887.84, 11,517,148.08 and 2,561,407.20
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Solution
The fourth proportional to 7,678,887.84, 11,517,148.08 and 2,561,407.20 is: 3,841,715.97
Step by Step Solution
- Step 1: Write the proportion equation
7,678,887.84 : 11,517,148.08 = 2,561,407.20 : x - Step 2: Convert to fraction form
7,678,887.84/11,517,148.08 = 2,561,407.20/x - Step 3: Cross multiply
7,678,887.84x = 11,517,148.08 × 2,561,407.20 - Step 4: Simplify right side
7,678,887.84x = 29,500,106,015,578.18 - Step 5: Solve for x
x = 29,500,106,015,578.18/7,678,887.84 - Step 6: Final answer
x = 3,841,715.97
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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.