Finding the Fourth Proportional to 27,814,049.25, 38,382,660.81 and 15,424,111.28
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Solution
The fourth proportional to 27,814,049.25, 38,382,660.81 and 15,424,111.28 is: 21,284,870.32
Step by Step Solution
- Step 1: Write the proportion equation
27,814,049.25 : 38,382,660.81 = 15,424,111.28 : x - Step 2: Convert to fraction form
27,814,049.25/38,382,660.81 = 15,424,111.28/x - Step 3: Cross multiply
27,814,049.25x = 38,382,660.81 × 15,424,111.28 - Step 4: Simplify right side
27,814,049.25x = 592,018,431,421,418 - Step 5: Solve for x
x = 592,018,431,421,418/27,814,049.25 - Step 6: Final answer
x = 21,284,870.32
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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.