Finding the Fourth Proportional to 261,330,266.92, 391,965,540.54 and 69,868,972.84
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Solution
The fourth proportional to 261,330,266.92, 391,965,540.54 and 69,868,972.84 is: 104,795,475.97
Step by Step Solution
- Step 1: Write the proportion equation
261,330,266.92 : 391,965,540.54 = 69,868,972.84 : x - Step 2: Convert to fraction form
261,330,266.92/391,965,540.54 = 69,868,972.84/x - Step 3: Cross multiply
261,330,266.92x = 391,965,540.54 × 69,868,972.84 - Step 4: Simplify right side
261,330,266.92x = 27,386,229,706,205,180 - Step 5: Solve for x
x = 27,386,229,706,205,180/261,330,266.92 - Step 6: Final answer
x = 104,795,475.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.