Finding the Fourth Proportional to 129,310,201.80, 193,965,302.70 and 106,351,950.60
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Solution
The fourth proportional to 129,310,201.80, 193,965,302.70 and 106,351,950.60 is: 159,527,925.90
Step by Step Solution
- Step 1: Write the proportion equation
129,310,201.80 : 193,965,302.70 = 106,351,950.60 : x - Step 2: Convert to fraction form
129,310,201.80/193,965,302.70 = 106,351,950.60/x - Step 3: Cross multiply
129,310,201.80x = 193,965,302.70 × 106,351,950.60 - Step 4: Simplify right side
129,310,201.80x = 20,628,588,290,864,444 - Step 5: Solve for x
x = 20,628,588,290,864,444/129,310,201.80 - Step 6: Final answer
x = 159,527,925.90
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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.