Finding the Fourth Proportional to 216,331,258.08, 298,551,783.26 and 122,212,761.78
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Solution
The fourth proportional to 216,331,258.08, 298,551,783.26 and 122,212,761.78 is: 168,661,885.90
Step by Step Solution
- Step 1: Write the proportion equation
216,331,258.08 : 298,551,783.26 = 122,212,761.78 : x - Step 2: Convert to fraction form
216,331,258.08/298,551,783.26 = 122,212,761.78/x - Step 3: Cross multiply
216,331,258.08x = 298,551,783.26 × 122,212,761.78 - Step 4: Simplify right side
216,331,258.08x = 36,486,837,966,548,568 - Step 5: Solve for x
x = 36,486,837,966,548,568/216,331,258.08 - Step 6: Final answer
x = 168,661,885.90
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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.