Finding the Fourth Proportional to 19,102,117.20, 28,590,190.20 and 13,433,413.20
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Solution
The fourth proportional to 19,102,117.20, 28,590,190.20 and 13,433,413.20 is: 20,105,825.67
Step by Step Solution
- Step 1: Write the proportion equation
19,102,117.20 : 28,590,190.20 = 13,433,413.20 : x - Step 2: Convert to fraction form
19,102,117.20/28,590,190.20 = 13,433,413.20/x - Step 3: Cross multiply
19,102,117.20x = 28,590,190.20 × 13,433,413.20 - Step 4: Simplify right side
19,102,117.20x = 384,063,838,423,190.62 - Step 5: Solve for x
x = 384,063,838,423,190.62/19,102,117.20 - Step 6: Final answer
x = 20,105,825.67
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1.5x scale
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.