Finding the Fourth Proportional to 6,668,658.72, 9,203,173.02 and 4,089,988.08
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Solution
The fourth proportional to 6,668,658.72, 9,203,173.02 and 4,089,988.08 is: 5,644,443.59
Step by Step Solution
- Step 1: Write the proportion equation
6,668,658.72 : 9,203,173.02 = 4,089,988.08 : x - Step 2: Convert to fraction form
6,668,658.72/9,203,173.02 = 4,089,988.08/x - Step 3: Cross multiply
6,668,658.72x = 9,203,173.02 × 4,089,988.08 - Step 4: Simplify right side
6,668,658.72x = 37,640,867,949,977.60 - Step 5: Solve for x
x = 37,640,867,949,977.60/6,668,658.72 - Step 6: Final answer
x = 5,644,443.59
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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.