Finding the Fourth Proportional to 129,025,138.80, 193,537,708.20 and 48,235,609.20
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Solution
The fourth proportional to 129,025,138.80, 193,537,708.20 and 48,235,609.20 is: 72,353,413.80
Step by Step Solution
- Step 1: Write the proportion equation
129,025,138.80 : 193,537,708.20 = 48,235,609.20 : x - Step 2: Convert to fraction form
129,025,138.80/193,537,708.20 = 48,235,609.20/x - Step 3: Cross multiply
129,025,138.80x = 193,537,708.20 × 48,235,609.20 - Step 4: Simplify right side
129,025,138.80x = 9,335,409,258,198,836 - Step 5: Solve for x
x = 9,335,409,258,198,836/129,025,138.80 - Step 6: Final answer
x = 72,353,413.80
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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.