Finding the Fourth Proportional to 20,613,413.36, 30,923,742.36 and 7,835,034.80
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Solution
The fourth proportional to 20,613,413.36, 30,923,742.36 and 7,835,034.80 is: 11,753,929.02
Step by Step Solution
- Step 1: Write the proportion equation
20,613,413.36 : 30,923,742.36 = 7,835,034.80 : x - Step 2: Convert to fraction form
20,613,413.36/30,923,742.36 = 7,835,034.80/x - Step 3: Cross multiply
20,613,413.36x = 30,923,742.36 × 7,835,034.80 - Step 4: Simplify right side
20,613,413.36x = 242,288,597,536,834.12 - Step 5: Solve for x
x = 242,288,597,536,834.12/20,613,413.36 - Step 6: Final answer
x = 11,753,929.02
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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.