Finding the Fourth Proportional to 19,642,398.81, 27,097,121.97 and 15,261,502.47
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Solution
The fourth proportional to 19,642,398.81, 27,097,121.97 and 15,261,502.47 is: 21,053,578.94
Step by Step Solution
- Step 1: Write the proportion equation
19,642,398.81 : 27,097,121.97 = 15,261,502.47 : x - Step 2: Convert to fraction form
19,642,398.81/27,097,121.97 = 15,261,502.47/x - Step 3: Cross multiply
19,642,398.81x = 27,097,121.97 × 15,261,502.47 - Step 4: Simplify right side
19,642,398.81x = 413,542,793,875,046.25 - Step 5: Solve for x
x = 413,542,793,875,046.25/19,642,398.81 - Step 6: Final answer
x = 21,053,578.94
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.