Finding the Fourth Proportional to 5,278,171.08, 7,281,710.88 and 3,211,529.94
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Solution
The fourth proportional to 5,278,171.08, 7,281,710.88 and 3,211,529.94 is: 4,430,593.88
Step by Step Solution
- Step 1: Write the proportion equation
5,278,171.08 : 7,281,710.88 = 3,211,529.94 : x - Step 2: Convert to fraction form
5,278,171.08/7,281,710.88 = 3,211,529.94/x - Step 3: Cross multiply
5,278,171.08x = 7,281,710.88 × 3,211,529.94 - Step 4: Simplify right side
5,278,171.08x = 23,385,432,505,543.75 - Step 5: Solve for x
x = 23,385,432,505,543.75/5,278,171.08 - Step 6: Final answer
x = 4,430,593.88
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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.