Finding the Fourth Proportional to 5,328,197.75, 7,990,312.52 and 1,915,553.14
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Solution
The fourth proportional to 5,328,197.75, 7,990,312.52 and 1,915,553.14 is: 2,872,616.40
Step by Step Solution
- Step 1: Write the proportion equation
5,328,197.75 : 7,990,312.52 = 1,915,553.14 : x - Step 2: Convert to fraction form
5,328,197.75/7,990,312.52 = 1,915,553.14/x - Step 3: Cross multiply
5,328,197.75x = 7,990,312.52 × 1,915,553.14 - Step 4: Simplify right side
5,328,197.75x = 15,305,868,222,080.41 - Step 5: Solve for x
x = 15,305,868,222,080.41/5,328,197.75 - Step 6: Final answer
x = 2,872,616.40
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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.