Finding the Fourth Proportional to 7,320,439.68, 10,982,954.96 and 4,405,712.70
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Solution
The fourth proportional to 7,320,439.68, 10,982,954.96 and 4,405,712.70 is: 6,609,950.53
Step by Step Solution
- Step 1: Write the proportion equation
7,320,439.68 : 10,982,954.96 = 4,405,712.70 : x - Step 2: Convert to fraction form
7,320,439.68/10,982,954.96 = 4,405,712.70/x - Step 3: Cross multiply
7,320,439.68x = 10,982,954.96 × 4,405,712.70 - Step 4: Simplify right side
7,320,439.68x = 48,387,744,128,771.43 - Step 5: Solve for x
x = 48,387,744,128,771.43/7,320,439.68 - Step 6: Final answer
x = 6,609,950.53
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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.