Finding the Fourth Proportional to 27,786,013.62, 38,344,660.81 and 15,396,909.09
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Solution
The fourth proportional to 27,786,013.62, 38,344,660.81 and 15,396,909.09 is: 21,247,713.50
Step by Step Solution
- Step 1: Write the proportion equation
27,786,013.62 : 38,344,660.81 = 15,396,909.09 : x - Step 2: Convert to fraction form
27,786,013.62/38,344,660.81 = 15,396,909.09/x - Step 3: Cross multiply
27,786,013.62x = 38,344,660.81 × 15,396,909.09 - Step 4: Simplify right side
27,786,013.62x = 590,389,256,578,455.75 - Step 5: Solve for x
x = 590,389,256,578,455.75/27,786,013.62 - Step 6: Final answer
x = 21,247,713.50
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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.