Finding the Fourth Proportional to 13,291,932.84, 18,342,413.83 and 7,331,575.84
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Solution
The fourth proportional to 13,291,932.84, 18,342,413.83 and 7,331,575.84 is: 10,117,324.52
Step by Step Solution
- Step 1: Write the proportion equation
13,291,932.84 : 18,342,413.83 = 7,331,575.84 : x - Step 2: Convert to fraction form
13,291,932.84/18,342,413.83 = 7,331,575.84/x - Step 3: Cross multiply
13,291,932.84x = 18,342,413.83 × 7,331,575.84 - Step 4: Simplify right side
13,291,932.84x = 134,478,798,083,309.84 - Step 5: Solve for x
x = 134,478,798,083,309.84/13,291,932.84 - Step 6: Final answer
x = 10,117,324.52
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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.