Finding the Fourth Proportional to 216,498,391.43, 298,774,081.50 and 122,410,517.26
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Solution
The fourth proportional to 216,498,391.43, 298,774,081.50 and 122,410,517.26 is: 168,930,076.65
Step by Step Solution
- Step 1: Write the proportion equation
216,498,391.43 : 298,774,081.50 = 122,410,517.26 : x - Step 2: Convert to fraction form
216,498,391.43/298,774,081.50 = 122,410,517.26/x - Step 3: Cross multiply
216,498,391.43x = 298,774,081.50 × 122,410,517.26 - Step 4: Simplify right side
216,498,391.43x = 36,573,089,859,549,456 - Step 5: Solve for x
x = 36,573,089,859,549,456/216,498,391.43 - Step 6: Final answer
x = 168,930,076.65
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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.