Finding the Fourth Proportional to 91,161,308.16, 125,802,634.24 and 49,910,819.84
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Solution
The fourth proportional to 91,161,308.16, 125,802,634.24 and 49,910,819.84 is: 68,876,947.25
Step by Step Solution
- Step 1: Write the proportion equation
91,161,308.16 : 125,802,634.24 = 49,910,819.84 : x - Step 2: Convert to fraction form
91,161,308.16/125,802,634.24 = 49,910,819.84/x - Step 3: Cross multiply
91,161,308.16x = 125,802,634.24 × 49,910,819.84 - Step 4: Simplify right side
91,161,308.16x = 6,278,912,612,950,056 - Step 5: Solve for x
x = 6,278,912,612,950,056/91,161,308.16 - Step 6: Final answer
x = 68,876,947.25
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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.