Finding the Fourth Proportional to 193,537,708.20, 290,306,562.30 and 72,353,413.80
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Solution
The fourth proportional to 193,537,708.20, 290,306,562.30 and 72,353,413.80 is: 108,530,120.70
Step by Step Solution
- Step 1: Write the proportion equation
193,537,708.20 : 290,306,562.30 = 72,353,413.80 : x - Step 2: Convert to fraction form
193,537,708.20/290,306,562.30 = 72,353,413.80/x - Step 3: Cross multiply
193,537,708.20x = 290,306,562.30 × 72,353,413.80 - Step 4: Simplify right side
193,537,708.20x = 21,004,670,830,947,380 - Step 5: Solve for x
x = 21,004,670,830,947,380/193,537,708.20 - Step 6: Final answer
x = 108,530,120.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.