Finding the Fourth Proportional to 5,388,512.12, 8,075,769.72 and 2,189,916.08
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Solution
The fourth proportional to 5,388,512.12, 8,075,769.72 and 2,189,916.08 is: 3,282,029.91
Step by Step Solution
- Step 1: Write the proportion equation
5,388,512.12 : 8,075,769.72 = 2,189,916.08 : x - Step 2: Convert to fraction form
5,388,512.12/8,075,769.72 = 2,189,916.08/x - Step 3: Cross multiply
5,388,512.12x = 8,075,769.72 × 2,189,916.08 - Step 4: Simplify right side
5,388,512.12x = 17,685,257,968,205.10 - Step 5: Solve for x
x = 17,685,257,968,205.10/5,388,512.12 - Step 6: Final answer
x = 3,282,029.91
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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.