Finding the Fourth Proportional to 7,461,919.20, 11,195,643.60 and 2,977,413.60
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Solution
The fourth proportional to 7,461,919.20, 11,195,643.60 and 2,977,413.60 is: 4,467,223.60
Step by Step Solution
- Step 1: Write the proportion equation
7,461,919.20 : 11,195,643.60 = 2,977,413.60 : x - Step 2: Convert to fraction form
7,461,919.20/11,195,643.60 = 2,977,413.60/x - Step 3: Cross multiply
7,461,919.20x = 11,195,643.60 × 2,977,413.60 - Step 4: Simplify right side
7,461,919.20x = 33,334,061,515,392.96 - Step 5: Solve for x
x = 33,334,061,515,392.96/7,461,919.20 - Step 6: Final answer
x = 4,467,223.60
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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.