Finding the Fourth Proportional to 19,976,661.08, 27,586,421.16 and 14,703,437.60
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Solution
The fourth proportional to 19,976,661.08, 27,586,421.16 and 14,703,437.60 is: 20,304,455.31
Step by Step Solution
- Step 1: Write the proportion equation
19,976,661.08 : 27,586,421.16 = 14,703,437.60 : x - Step 2: Convert to fraction form
19,976,661.08/27,586,421.16 = 14,703,437.60/x - Step 3: Cross multiply
19,976,661.08x = 27,586,421.16 × 14,703,437.60 - Step 4: Simplify right side
19,976,661.08x = 405,615,222,133,379.62 - Step 5: Solve for x
x = 405,615,222,133,379.62/19,976,661.08 - Step 6: Final answer
x = 20,304,455.31
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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.