Finding the Fourth Proportional to 3,638,536.80, 5,457,805.20 and 3,461,389.80
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Solution
The fourth proportional to 3,638,536.80, 5,457,805.20 and 3,461,389.80 is: 5,192,084.70
Step by Step Solution
- Step 1: Write the proportion equation
3,638,536.80 : 5,457,805.20 = 3,461,389.80 : x - Step 2: Convert to fraction form
3,638,536.80/5,457,805.20 = 3,461,389.80/x - Step 3: Cross multiply
3,638,536.80x = 5,457,805.20 × 3,461,389.80 - Step 4: Simplify right side
3,638,536.80x = 18,891,591,249,666.96 - Step 5: Solve for x
x = 18,891,591,249,666.96/3,638,536.80 - Step 6: Final answer
x = 5,192,084.70
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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.