Finding the Fourth Proportional to 5,105,324.94, 7,045,349.70 and 2,782,218.14
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Solution
The fourth proportional to 5,105,324.94, 7,045,349.70 and 2,782,218.14 is: 3,839,461.73
Step by Step Solution
- Step 1: Write the proportion equation
5,105,324.94 : 7,045,349.70 = 2,782,218.14 : x - Step 2: Convert to fraction form
5,105,324.94/7,045,349.70 = 2,782,218.14/x - Step 3: Cross multiply
5,105,324.94x = 7,045,349.70 × 2,782,218.14 - Step 4: Simplify right side
5,105,324.94x = 19,601,699,737,983.56 - Step 5: Solve for x
x = 19,601,699,737,983.56/5,105,324.94 - Step 6: Final answer
x = 3,839,461.73
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1.5x scale
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.