Finding the Fourth Proportional to 5,420,841.83, 8,120,420.69 and 3,260,674.50
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Solution
The fourth proportional to 5,420,841.83, 8,120,420.69 and 3,260,674.50 is: 4,884,490.17
Step by Step Solution
- Step 1: Write the proportion equation
5,420,841.83 : 8,120,420.69 = 3,260,674.50 : x - Step 2: Convert to fraction form
5,420,841.83/8,120,420.69 = 3,260,674.50/x - Step 3: Cross multiply
5,420,841.83x = 8,120,420.69 × 3,260,674.50 - Step 4: Simplify right side
5,420,841.83x = 26,478,048,616,249.93 - Step 5: Solve for x
x = 26,478,048,616,249.93/5,420,841.83 - Step 6: Final answer
x = 4,884,490.17
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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.