Finding the Fourth Proportional to 10,215,969.60, 15,323,899.05 and 4,379,295.81
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Solution
The fourth proportional to 10,215,969.60, 15,323,899.05 and 4,379,295.81 is: 6,568,919.99
Step by Step Solution
- Step 1: Write the proportion equation
10,215,969.60 : 15,323,899.05 = 4,379,295.81 : x - Step 2: Convert to fraction form
10,215,969.60/15,323,899.05 = 4,379,295.81/x - Step 3: Cross multiply
10,215,969.60x = 15,323,899.05 × 4,379,295.81 - Step 4: Simplify right side
10,215,969.60x = 67,107,886,902,527.98 - Step 5: Solve for x
x = 67,107,886,902,527.98/10,215,969.60 - Step 6: Final answer
x = 6,568,919.99
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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.