Finding the Fourth Proportional to 5,390,367.20, 8,078,558.16 and 2,191,770.08
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Solution
The fourth proportional to 5,390,367.20, 8,078,558.16 and 2,191,770.08 is: 3,284,811.85
Step by Step Solution
- Step 1: Write the proportion equation
5,390,367.20 : 8,078,558.16 = 2,191,770.08 : x - Step 2: Convert to fraction form
5,390,367.20/8,078,558.16 = 2,191,770.08/x - Step 3: Cross multiply
5,390,367.20x = 8,078,558.16 × 2,191,770.08 - Step 4: Simplify right side
5,390,367.20x = 17,706,342,064,627.86 - Step 5: Solve for x
x = 17,706,342,064,627.86/5,390,367.20 - Step 6: Final answer
x = 3,284,811.85
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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.