Finding the Fourth Proportional to 39,192,995.88, 54,086,544.45 and 21,553,035.75
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Solution
The fourth proportional to 39,192,995.88, 54,086,544.45 and 21,553,035.75 is: 29,743,304.89
Step by Step Solution
- Step 1: Write the proportion equation
39,192,995.88 : 54,086,544.45 = 21,553,035.75 : x - Step 2: Convert to fraction form
39,192,995.88/54,086,544.45 = 21,553,035.75/x - Step 3: Cross multiply
39,192,995.88x = 54,086,544.45 × 21,553,035.75 - Step 4: Simplify right side
39,192,995.88x = 1,165,729,226,124,814.25 - Step 5: Solve for x
x = 1,165,729,226,124,814.25/39,192,995.88 - Step 6: Final answer
x = 29,743,304.89
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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.