Finding the Fourth Proportional to 352,273,204.40, 528,409,806.60 and 261,573,940.40
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Solution
The fourth proportional to 352,273,204.40, 528,409,806.60 and 261,573,940.40 is: 392,360,910.60
Step by Step Solution
- Step 1: Write the proportion equation
352,273,204.40 : 528,409,806.60 = 261,573,940.40 : x - Step 2: Convert to fraction form
352,273,204.40/528,409,806.60 = 261,573,940.40/x - Step 3: Cross multiply
352,273,204.40x = 528,409,806.60 × 261,573,940.40 - Step 4: Simplify right side
352,273,204.40x = 138,218,235,258,363,936 - Step 5: Solve for x
x = 138,218,235,258,363,936/352,273,204.40 - Step 6: Final answer
x = 392,360,910.60
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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.