Finding the Fourth Proportional to 7,027,623.20, 10,520,439.60 and 4,186,272.80
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Solution
The fourth proportional to 7,027,623.20, 10,520,439.60 and 4,186,272.80 is: 6,266,902.61
Step by Step Solution
- Step 1: Write the proportion equation
7,027,623.20 : 10,520,439.60 = 4,186,272.80 : x - Step 2: Convert to fraction form
7,027,623.20/10,520,439.60 = 4,186,272.80/x - Step 3: Cross multiply
7,027,623.20x = 10,520,439.60 × 4,186,272.80 - Step 4: Simplify right side
7,027,623.20x = 44,041,430,141,522.88 - Step 5: Solve for x
x = 44,041,430,141,522.88/7,027,623.20 - Step 6: Final answer
x = 6,266,902.61
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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.