Finding the Fourth Proportional to 6,368,635.62, 8,782,957.04 and 4,192,373.79
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Solution
The fourth proportional to 6,368,635.62, 8,782,957.04 and 4,192,373.79 is: 5,781,684.03
Step by Step Solution
- Step 1: Write the proportion equation
6,368,635.62 : 8,782,957.04 = 4,192,373.79 : x - Step 2: Convert to fraction form
6,368,635.62/8,782,957.04 = 4,192,373.79/x - Step 3: Cross multiply
6,368,635.62x = 8,782,957.04 × 4,192,373.79 - Step 4: Simplify right side
6,368,635.62x = 36,821,438,872,230.12 - Step 5: Solve for x
x = 36,821,438,872,230.12/6,368,635.62 - Step 6: Final answer
x = 5,781,684.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.