Finding the Fourth Proportional to 208,288,512.70, 312,432,769.05 and 174,528,231.10
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Solution
The fourth proportional to 208,288,512.70, 312,432,769.05 and 174,528,231.10 is: 261,792,346.65
Step by Step Solution
- Step 1: Write the proportion equation
208,288,512.70 : 312,432,769.05 = 174,528,231.10 : x - Step 2: Convert to fraction form
208,288,512.70/312,432,769.05 = 174,528,231.10/x - Step 3: Cross multiply
208,288,512.70x = 312,432,769.05 × 174,528,231.10 - Step 4: Simplify right side
208,288,512.70x = 54,528,338,519,971,328 - Step 5: Solve for x
x = 54,528,338,519,971,328/208,288,512.70 - Step 6: Final answer
x = 261,792,346.65
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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.