Finding the Fourth Proportional to 8,199,781.44, 12,299,715.88 and 5,377,764.12
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Solution
The fourth proportional to 8,199,781.44, 12,299,715.88 and 5,377,764.12 is: 8,066,674.85
Step by Step Solution
- Step 1: Write the proportion equation
8,199,781.44 : 12,299,715.88 = 5,377,764.12 : x - Step 2: Convert to fraction form
8,199,781.44/12,299,715.88 = 5,377,764.12/x - Step 3: Cross multiply
8,199,781.44x = 12,299,715.88 × 5,377,764.12 - Step 4: Simplify right side
8,199,781.44x = 66,144,970,745,658.23 - Step 5: Solve for x
x = 66,144,970,745,658.23/8,199,781.44 - Step 6: Final answer
x = 8,066,674.85
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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.