Finding the Fourth Proportional to 5,422,988.07, 8,134,446.87 and 1,379,441.34
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Solution
The fourth proportional to 5,422,988.07, 8,134,446.87 and 1,379,441.34 is: 2,069,153.05
Step by Step Solution
- Step 1: Write the proportion equation
5,422,988.07 : 8,134,446.87 = 1,379,441.34 : x - Step 2: Convert to fraction form
5,422,988.07/8,134,446.87 = 1,379,441.34/x - Step 3: Cross multiply
5,422,988.07x = 8,134,446.87 × 1,379,441.34 - Step 4: Simplify right side
5,422,988.07x = 11,220,992,290,511.61 - Step 5: Solve for x
x = 11,220,992,290,511.61/5,422,988.07 - Step 6: Final answer
x = 2,069,153.05
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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.