Finding the Fourth Proportional to 11,728,590.62, 16,175,855.32 and 8,255,425.84
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Solution
The fourth proportional to 11,728,590.62, 16,175,855.32 and 8,255,425.84 is: 11,385,730.67
Step by Step Solution
- Step 1: Write the proportion equation
11,728,590.62 : 16,175,855.32 = 8,255,425.84 : x - Step 2: Convert to fraction form
11,728,590.62/16,175,855.32 = 8,255,425.84/x - Step 3: Cross multiply
11,728,590.62x = 16,175,855.32 × 8,255,425.84 - Step 4: Simplify right side
11,728,590.62x = 133,538,573,931,751.28 - Step 5: Solve for x
x = 133,538,573,931,751.28/11,728,590.62 - Step 6: Final answer
x = 11,385,730.67
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1.5x scale
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.