Finding the Fourth Proportional to 14,479,102.75, 19,984,641.55 and 8,287,738.96
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Solution
The fourth proportional to 14,479,102.75, 19,984,641.55 and 8,287,738.96 is: 11,439,071.55
Step by Step Solution
- Step 1: Write the proportion equation
14,479,102.75 : 19,984,641.55 = 8,287,738.96 : x - Step 2: Convert to fraction form
14,479,102.75/19,984,641.55 = 8,287,738.96/x - Step 3: Cross multiply
14,479,102.75x = 19,984,641.55 × 8,287,738.96 - Step 4: Simplify right side
14,479,102.75x = 165,627,492,375,569.78 - Step 5: Solve for x
x = 165,627,492,375,569.78/14,479,102.75 - Step 6: Final answer
x = 11,439,071.55
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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.