Finding the Fourth Proportional to 5,529,121.50, 7,630,223.28 and 3,081,887.94
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Solution
The fourth proportional to 5,529,121.50, 7,630,223.28 and 3,081,887.94 is: 4,253,025.21
Step by Step Solution
- Step 1: Write the proportion equation
5,529,121.50 : 7,630,223.28 = 3,081,887.94 : x - Step 2: Convert to fraction form
5,529,121.50/7,630,223.28 = 3,081,887.94/x - Step 3: Cross multiply
5,529,121.50x = 7,630,223.28 × 3,081,887.94 - Step 4: Simplify right side
5,529,121.50x = 23,515,493,106,139.24 - Step 5: Solve for x
x = 23,515,493,106,139.24/5,529,121.50 - Step 6: Final answer
x = 4,253,025.21
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.