Finding the Fourth Proportional to 20,121,609.30, 30,182,413.95 and 14,494,895.70
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Solution
The fourth proportional to 20,121,609.30, 30,182,413.95 and 14,494,895.70 is: 21,742,343.55
Step by Step Solution
- Step 1: Write the proportion equation
20,121,609.30 : 30,182,413.95 = 14,494,895.70 : x - Step 2: Convert to fraction form
20,121,609.30/30,182,413.95 = 14,494,895.70/x - Step 3: Cross multiply
20,121,609.30x = 30,182,413.95 × 14,494,895.70 - Step 4: Simplify right side
20,121,609.30x = 437,490,942,179,475 - Step 5: Solve for x
x = 437,490,942,179,475/20,121,609.30 - Step 6: Final answer
x = 21,742,343.55
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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.