Finding the Fourth Proportional to 7,480,559.20, 11,192,845.20 and 4,961,135.20
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Solution
The fourth proportional to 7,480,559.20, 11,192,845.20 and 4,961,135.20 is: 7,423,137.34
Step by Step Solution
- Step 1: Write the proportion equation
7,480,559.20 : 11,192,845.20 = 4,961,135.20 : x - Step 2: Convert to fraction form
7,480,559.20/11,192,845.20 = 4,961,135.20/x - Step 3: Cross multiply
7,480,559.20x = 11,192,845.20 × 4,961,135.20 - Step 4: Simplify right side
7,480,559.20x = 55,529,218,309,871.04 - Step 5: Solve for x
x = 55,529,218,309,871.04/7,480,559.20 - Step 6: Final answer
x = 7,423,137.34
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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.