Finding the Fourth Proportional to 15,755,048, 21,731,169.12 and 9,646,493.12
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Solution
The fourth proportional to 15,755,048, 21,731,169.12 and 9,646,493.12 is: 13,305,549.65
Step by Step Solution
- Step 1: Write the proportion equation
15,755,048 : 21,731,169.12 = 9,646,493.12 : x - Step 2: Convert to fraction form
15,755,048/21,731,169.12 = 9,646,493.12/x - Step 3: Cross multiply
15,755,048x = 21,731,169.12 × 9,646,493.12 - Step 4: Simplify right side
15,755,048x = 209,629,573,405,636.44 - Step 5: Solve for x
x = 209,629,573,405,636.44/15,755,048 - Step 6: Final answer
x = 13,305,549.65
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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.