Finding the Fourth Proportional to 7,984,207.80, 11,976,311.70 and 4,388,123.70
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Solution
The fourth proportional to 7,984,207.80, 11,976,311.70 and 4,388,123.70 is: 6,582,185.55
Step by Step Solution
- Step 1: Write the proportion equation
7,984,207.80 : 11,976,311.70 = 4,388,123.70 : x - Step 2: Convert to fraction form
7,984,207.80/11,976,311.70 = 4,388,123.70/x - Step 3: Cross multiply
7,984,207.80x = 11,976,311.70 × 4,388,123.70 - Step 4: Simplify right side
7,984,207.80x = 52,553,537,209,357.29 - Step 5: Solve for x
x = 52,553,537,209,357.29/7,984,207.80 - Step 6: Final answer
x = 6,582,185.55
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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.