Finding the Fourth Proportional to 7,716,328.96, 10,647,555.12 and 4,230,750.56
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Solution
The fourth proportional to 7,716,328.96, 10,647,555.12 and 4,230,750.56 is: 5,837,899.09
Step by Step Solution
- Step 1: Write the proportion equation
7,716,328.96 : 10,647,555.12 = 4,230,750.56 : x - Step 2: Convert to fraction form
7,716,328.96/10,647,555.12 = 4,230,750.56/x - Step 3: Cross multiply
7,716,328.96x = 10,647,555.12 × 4,230,750.56 - Step 4: Simplify right side
7,716,328.96x = 45,047,149,786,570.86 - Step 5: Solve for x
x = 45,047,149,786,570.86/7,716,328.96 - Step 6: Final answer
x = 5,837,899.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.