Finding the Fourth Proportional to 7,237,997.20, 10,856,218.20 and 1,919,213.20
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Solution
The fourth proportional to 7,237,997.20, 10,856,218.20 and 1,919,213.20 is: 2,878,613.61
Step by Step Solution
- Step 1: Write the proportion equation
7,237,997.20 : 10,856,218.20 = 1,919,213.20 : x - Step 2: Convert to fraction form
7,237,997.20/10,856,218.20 = 1,919,213.20/x - Step 3: Cross multiply
7,237,997.20x = 10,856,218.20 × 1,919,213.20 - Step 4: Simplify right side
7,237,997.20x = 20,835,397,271,520.24 - Step 5: Solve for x
x = 20,835,397,271,520.24/7,237,997.20 - Step 6: Final answer
x = 2,878,613.61
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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.