Finding the Fourth Proportional to 4,991,015.20, 7,489,114.80 and 2,331,623.20
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Solution
The fourth proportional to 4,991,015.20, 7,489,114.80 and 2,331,623.20 is: 3,498,645.69
Step by Step Solution
- Step 1: Write the proportion equation
4,991,015.20 : 7,489,114.80 = 2,331,623.20 : x - Step 2: Convert to fraction form
4,991,015.20/7,489,114.80 = 2,331,623.20/x - Step 3: Cross multiply
4,991,015.20x = 7,489,114.80 × 2,331,623.20 - Step 4: Simplify right side
4,991,015.20x = 17,461,793,815,143.36 - Step 5: Solve for x
x = 17,461,793,815,143.36/4,991,015.20 - Step 6: Final answer
x = 3,498,645.69
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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.