Finding the Fourth Proportional to 15,606,857.97, 21,537,305.33 and 8,637,549.05
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Solution
The fourth proportional to 15,606,857.97, 21,537,305.33 and 8,637,549.05 is: 11,919,729.88
Step by Step Solution
- Step 1: Write the proportion equation
15,606,857.97 : 21,537,305.33 = 8,637,549.05 : x - Step 2: Convert to fraction form
15,606,857.97/21,537,305.33 = 8,637,549.05/x - Step 3: Cross multiply
15,606,857.97x = 21,537,305.33 × 8,637,549.05 - Step 4: Simplify right side
15,606,857.97x = 186,029,531,203,356.94 - Step 5: Solve for x
x = 186,029,531,203,356.94/15,606,857.97 - Step 6: Final answer
x = 11,919,729.88
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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.