Finding the Fourth Proportional to 21,307,778.88, 31,984,413.20 and 9,183,225.84
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Solution
The fourth proportional to 21,307,778.88, 31,984,413.20 and 9,183,225.84 is: 13,784,641.35
Step by Step Solution
- Step 1: Write the proportion equation
21,307,778.88 : 31,984,413.20 = 9,183,225.84 : x - Step 2: Convert to fraction form
21,307,778.88/31,984,413.20 = 9,183,225.84/x - Step 3: Cross multiply
21,307,778.88x = 31,984,413.20 × 9,183,225.84 - Step 4: Simplify right side
21,307,778.88x = 293,720,089,775,477.06 - Step 5: Solve for x
x = 293,720,089,775,477.06/21,307,778.88 - Step 6: Final answer
x = 13,784,641.35
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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.