Finding the Fourth Proportional to 7,851,816.50, 11,777,727.48 and 2,460,885.20
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Solution
The fourth proportional to 7,851,816.50, 11,777,727.48 and 2,460,885.20 is: 3,691,328.66
Step by Step Solution
- Step 1: Write the proportion equation
7,851,816.50 : 11,777,727.48 = 2,460,885.20 : x - Step 2: Convert to fraction form
7,851,816.50/11,777,727.48 = 2,460,885.20/x - Step 3: Cross multiply
7,851,816.50x = 11,777,727.48 × 2,460,885.20 - Step 4: Simplify right side
7,851,816.50x = 28,983,635,245,165.30 - Step 5: Solve for x
x = 28,983,635,245,165.30/7,851,816.50 - Step 6: Final answer
x = 3,691,328.66
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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.