Finding the Fourth Proportional to 27,711,732.79, 38,233,791.72 and 19,338,879.84
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Solution
The fourth proportional to 27,711,732.79, 38,233,791.72 and 19,338,879.84 is: 26,681,792.49
Step by Step Solution
- Step 1: Write the proportion equation
27,711,732.79 : 38,233,791.72 = 19,338,879.84 : x - Step 2: Convert to fraction form
27,711,732.79/38,233,791.72 = 19,338,879.84/x - Step 3: Cross multiply
27,711,732.79x = 38,233,791.72 × 19,338,879.84 - Step 4: Simplify right side
27,711,732.79x = 739,398,703,757,290.12 - Step 5: Solve for x
x = 739,398,703,757,290.12/27,711,732.79 - Step 6: Final answer
x = 26,681,792.49
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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.