Finding the Fourth Proportional to 21,509,213.80, 32,263,820.70 and 5,552,861.80
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Solution
The fourth proportional to 21,509,213.80, 32,263,820.70 and 5,552,861.80 is: 8,329,292.70
Step by Step Solution
- Step 1: Write the proportion equation
21,509,213.80 : 32,263,820.70 = 5,552,861.80 : x - Step 2: Convert to fraction form
21,509,213.80/32,263,820.70 = 5,552,861.80/x - Step 3: Cross multiply
21,509,213.80x = 32,263,820.70 × 5,552,861.80 - Step 4: Simplify right side
21,509,213.80x = 179,156,537,487,079.25 - Step 5: Solve for x
x = 179,156,537,487,079.25/21,509,213.80 - Step 6: Final answer
x = 8,329,292.70
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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.