Finding the Fourth Proportional to 27,658,296.63, 38,167,448.91 and 15,268,124.09
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Solution
The fourth proportional to 27,658,296.63, 38,167,448.91 and 15,268,124.09 is: 21,069,458.97
Step by Step Solution
- Step 1: Write the proportion equation
27,658,296.63 : 38,167,448.91 = 15,268,124.09 : x - Step 2: Convert to fraction form
27,658,296.63/38,167,448.91 = 15,268,124.09/x - Step 3: Cross multiply
27,658,296.63x = 38,167,448.91 × 15,268,124.09 - Step 4: Simplify right side
27,658,296.63x = 582,745,345,965,778 - Step 5: Solve for x
x = 582,745,345,965,778/27,658,296.63 - Step 6: Final answer
x = 21,069,458.97
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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.