Finding the Fourth Proportional to 31,815,757.05, 47,723,330.61 and 18,852,576.41
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Solution
The fourth proportional to 31,815,757.05, 47,723,330.61 and 18,852,576.41 is: 28,278,683.90
Step by Step Solution
- Step 1: Write the proportion equation
31,815,757.05 : 47,723,330.61 = 18,852,576.41 : x - Step 2: Convert to fraction form
31,815,757.05/47,723,330.61 = 18,852,576.41/x - Step 3: Cross multiply
31,815,757.05x = 47,723,330.61 × 18,852,576.41 - Step 4: Simplify right side
31,815,757.05x = 899,707,736,626,100.25 - Step 5: Solve for x
x = 899,707,736,626,100.25/31,815,757.05 - Step 6: Final answer
x = 28,278,683.90
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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.