Finding the Fourth Proportional to 3,564,496.80, 5,331,193.20 and 3,188,138.40
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Solution
The fourth proportional to 3,564,496.80, 5,331,193.20 and 3,188,138.40 is: 4,768,297.66
Step by Step Solution
- Step 1: Write the proportion equation
3,564,496.80 : 5,331,193.20 = 3,188,138.40 : x - Step 2: Convert to fraction form
3,564,496.80/5,331,193.20 = 3,188,138.40/x - Step 3: Cross multiply
3,564,496.80x = 5,331,193.20 × 3,188,138.40 - Step 4: Simplify right side
3,564,496.80x = 16,996,581,758,738.88 - Step 5: Solve for x
x = 16,996,581,758,738.88/3,564,496.80 - Step 6: Final answer
x = 4,768,297.66
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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.