Finding the Fourth Proportional to 7,840,212.63, 11,743,172.87 and 5,558,821.71
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Solution
The fourth proportional to 7,840,212.63, 11,743,172.87 and 5,558,821.71 is: 8,326,075.75
Step by Step Solution
- Step 1: Write the proportion equation
7,840,212.63 : 11,743,172.87 = 5,558,821.71 : x - Step 2: Convert to fraction form
7,840,212.63/11,743,172.87 = 5,558,821.71/x - Step 3: Cross multiply
7,840,212.63x = 11,743,172.87 × 5,558,821.71 - Step 4: Simplify right side
7,840,212.63x = 65,278,204,266,244.90 - Step 5: Solve for x
x = 65,278,204,266,244.90/7,840,212.63 - Step 6: Final answer
x = 8,326,075.75
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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.