Finding the Fourth Proportional to 5,328,309.20, 7,985,902.80 and 3,622,449.20
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Solution
The fourth proportional to 5,328,309.20, 7,985,902.80 and 3,622,449.20 is: 5,429,213.31
Step by Step Solution
- Step 1: Write the proportion equation
5,328,309.20 : 7,985,902.80 = 3,622,449.20 : x - Step 2: Convert to fraction form
5,328,309.20/7,985,902.80 = 3,622,449.20/x - Step 3: Cross multiply
5,328,309.20x = 7,985,902.80 × 3,622,449.20 - Step 4: Simplify right side
5,328,309.20x = 28,928,527,209,137.76 - Step 5: Solve for x
x = 28,928,527,209,137.76/5,328,309.20 - Step 6: Final answer
x = 5,429,213.31
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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.