Finding the Fourth Proportional to 19,586,872.38, 27,001,394.59 and 13,688,192.52
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Solution
The fourth proportional to 19,586,872.38, 27,001,394.59 and 13,688,192.52 is: 18,869,796.07
Step by Step Solution
- Step 1: Write the proportion equation
19,586,872.38 : 27,001,394.59 = 13,688,192.52 : x - Step 2: Convert to fraction form
19,586,872.38/27,001,394.59 = 13,688,192.52/x - Step 3: Cross multiply
19,586,872.38x = 27,001,394.59 × 13,688,192.52 - Step 4: Simplify right side
19,586,872.38x = 369,600,287,456,406.44 - Step 5: Solve for x
x = 369,600,287,456,406.44/19,586,872.38 - Step 6: Final answer
x = 18,869,796.07
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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.