Finding the Fourth Proportional to 216,440,170.13, 298,691,261.13 and 117,324,209.30
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Solution
The fourth proportional to 216,440,170.13, 298,691,261.13 and 117,324,209.30 is: 161,909,482.95
Step by Step Solution
- Step 1: Write the proportion equation
216,440,170.13 : 298,691,261.13 = 117,324,209.30 : x - Step 2: Convert to fraction form
216,440,170.13/298,691,261.13 = 117,324,209.30/x - Step 3: Cross multiply
216,440,170.13x = 298,691,261.13 × 117,324,209.30 - Step 4: Simplify right side
216,440,170.13x = 35,043,716,035,844,756 - Step 5: Solve for x
x = 35,043,716,035,844,756/216,440,170.13 - Step 6: Final answer
x = 161,909,482.95
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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.