Finding the Fourth Proportional to 18,161,201,463.12, 25,062,446,933.64 and 9,816,869,175.12
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Solution
The fourth proportional to 18,161,201,463.12, 25,062,446,933.64 and 9,816,869,175.12 is: 13,547,273,469.52
Step by Step Solution
- Step 1: Write the proportion equation
18,161,201,463.12 : 25,062,446,933.64 = 9,816,869,175.12 : x - Step 2: Convert to fraction form
18,161,201,463.12/25,062,446,933.64 = 9,816,869,175.12/x - Step 3: Cross multiply
18,161,201,463.12x = 25,062,446,933.64 × 9,816,869,175.12 - Step 4: Simplify right side
18,161,201,463.12x = 246,034,762,755,931,308,032 - Step 5: Solve for x
x = 246,034,762,755,931,308,032/18,161,201,463.12 - Step 6: Final answer
x = 13,547,273,469.52
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1.5x scale
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.