Finding the Fourth Proportional to 154,473,563.36, 213,177,361.40 and 83,909,151.38
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Solution
The fourth proportional to 154,473,563.36, 213,177,361.40 and 83,909,151.38 is: 115,796,716.92
Step by Step Solution
- Step 1: Write the proportion equation
154,473,563.36 : 213,177,361.40 = 83,909,151.38 : x - Step 2: Convert to fraction form
154,473,563.36/213,177,361.40 = 83,909,151.38/x - Step 3: Cross multiply
154,473,563.36x = 213,177,361.40 × 83,909,151.38 - Step 4: Simplify right side
154,473,563.36x = 17,887,531,488,082,022 - Step 5: Solve for x
x = 17,887,531,488,082,022/154,473,563.36 - Step 6: Final answer
x = 115,796,716.92
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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.