Finding the Fourth Proportional to 3,996,799.20, 5,984,701.20 and 3,149,992.80
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Solution
The fourth proportional to 3,996,799.20, 5,984,701.20 and 3,149,992.80 is: 4,716,715.74
Step by Step Solution
- Step 1: Write the proportion equation
3,996,799.20 : 5,984,701.20 = 3,149,992.80 : x - Step 2: Convert to fraction form
3,996,799.20/5,984,701.20 = 3,149,992.80/x - Step 3: Cross multiply
3,996,799.20x = 5,984,701.20 × 3,149,992.80 - Step 4: Simplify right side
3,996,799.20x = 18,851,765,690,151.36 - Step 5: Solve for x
x = 18,851,765,690,151.36/3,996,799.20 - Step 6: Final answer
x = 4,716,715.74
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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.