Finding the Fourth Proportional to 7,428,413.16, 11,142,623.34 and 4,903,478.28
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Solution
The fourth proportional to 7,428,413.16, 11,142,623.34 and 4,903,478.28 is: 7,355,219.80
Step by Step Solution
- Step 1: Write the proportion equation
7,428,413.16 : 11,142,623.34 = 4,903,478.28 : x - Step 2: Convert to fraction form
7,428,413.16/11,142,623.34 = 4,903,478.28/x - Step 3: Cross multiply
7,428,413.16x = 11,142,623.34 × 4,903,478.28 - Step 4: Simplify right side
7,428,413.16x = 54,637,611,529,911.05 - Step 5: Solve for x
x = 54,637,611,529,911.05/7,428,413.16 - Step 6: Final answer
x = 7,355,219.80
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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.