Finding the Fourth Proportional to 13,879,413.48, 19,151,305.56 and 8,719,120.56
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Solution
The fourth proportional to 13,879,413.48, 19,151,305.56 and 8,719,120.56 is: 12,030,950.90
Step by Step Solution
- Step 1: Write the proportion equation
13,879,413.48 : 19,151,305.56 = 8,719,120.56 : x - Step 2: Convert to fraction form
13,879,413.48/19,151,305.56 = 8,719,120.56/x - Step 3: Cross multiply
13,879,413.48x = 19,151,305.56 × 8,719,120.56 - Step 4: Simplify right side
13,879,413.48x = 166,982,542,059,038.31 - Step 5: Solve for x
x = 166,982,542,059,038.31/13,879,413.48 - Step 6: Final answer
x = 12,030,950.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.