Finding the Fourth Proportional to 6,321,461.09, 8,723,616.29 and 3,420,851.96
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Solution
The fourth proportional to 6,321,461.09, 8,723,616.29 and 3,420,851.96 is: 4,720,775.69
Step by Step Solution
- Step 1: Write the proportion equation
6,321,461.09 : 8,723,616.29 = 3,420,851.96 : x - Step 2: Convert to fraction form
6,321,461.09/8,723,616.29 = 3,420,851.96/x - Step 3: Cross multiply
6,321,461.09x = 8,723,616.29 × 3,420,851.96 - Step 4: Simplify right side
6,321,461.09x = 29,842,199,823,212.09 - Step 5: Solve for x
x = 29,842,199,823,212.09/6,321,461.09 - Step 6: Final answer
x = 4,720,775.69
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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.