Finding the Fourth Proportional to 5,529,121.52, 7,630,223.12 and 3,081,887.74
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Solution
The fourth proportional to 5,529,121.52, 7,630,223.12 and 3,081,887.74 is: 4,253,024.83
Step by Step Solution
- Step 1: Write the proportion equation
5,529,121.52 : 7,630,223.12 = 3,081,887.74 : x - Step 2: Convert to fraction form
5,529,121.52/7,630,223.12 = 3,081,887.74/x - Step 3: Cross multiply
5,529,121.52x = 7,630,223.12 × 3,081,887.74 - Step 4: Simplify right side
5,529,121.52x = 23,515,491,086,992.55 - Step 5: Solve for x
x = 23,515,491,086,992.55/5,529,121.52 - Step 6: Final answer
x = 4,253,024.83
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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.