Finding the Fourth Proportional to 189,179,326.97, 261,067,355.75 and 102,259,198.97
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Solution
The fourth proportional to 189,179,326.97, 261,067,355.75 and 102,259,198.97 is: 141,117,632.16
Step by Step Solution
- Step 1: Write the proportion equation
189,179,326.97 : 261,067,355.75 = 102,259,198.97 : x - Step 2: Convert to fraction form
189,179,326.97/261,067,355.75 = 102,259,198.97/x - Step 3: Cross multiply
189,179,326.97x = 261,067,355.75 × 102,259,198.97 - Step 4: Simplify right side
189,179,326.97x = 26,696,538,675,699,728 - Step 5: Solve for x
x = 26,696,538,675,699,728/189,179,326.97 - Step 6: Final answer
x = 141,117,632.16
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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.