Finding the Fourth Proportional to 18,312,413.40, 27,421,380.90 and 14,533,277.40
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Solution
The fourth proportional to 18,312,413.40, 27,421,380.90 and 14,533,277.40 is: 21,762,425.66
Step by Step Solution
- Step 1: Write the proportion equation
18,312,413.40 : 27,421,380.90 = 14,533,277.40 : x - Step 2: Convert to fraction form
18,312,413.40/27,421,380.90 = 14,533,277.40/x - Step 3: Cross multiply
18,312,413.40x = 27,421,380.90 × 14,533,277.40 - Step 4: Simplify right side
18,312,413.40x = 398,522,535,310,761.62 - Step 5: Solve for x
x = 398,522,535,310,761.62/18,312,413.40 - Step 6: Final answer
x = 21,762,425.66
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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.