Finding the Fourth Proportional to 1,265,877,609.20, 1,898,816,413.80 and 1,243,202,793.20
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Solution
The fourth proportional to 1,265,877,609.20, 1,898,816,413.80 and 1,243,202,793.20 is: 1,864,804,189.80
Step by Step Solution
- Step 1: Write the proportion equation
1,265,877,609.20 : 1,898,816,413.80 = 1,243,202,793.20 : x - Step 2: Convert to fraction form
1,265,877,609.20/1,898,816,413.80 = 1,243,202,793.20/x - Step 3: Cross multiply
1,265,877,609.20x = 1,898,816,413.80 × 1,243,202,793.20 - Step 4: Simplify right side
1,265,877,609.20x = 2,360,613,869,410,167,296 - Step 5: Solve for x
x = 2,360,613,869,410,167,296/1,265,877,609.20 - Step 6: Final answer
x = 1,864,804,189.80
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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.