Finding the Fourth Proportional to 7,121,134.62, 10,681,698.69 and 4,729,647.42
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Solution
The fourth proportional to 7,121,134.62, 10,681,698.69 and 4,729,647.42 is: 7,094,468.98
Step by Step Solution
- Step 1: Write the proportion equation
7,121,134.62 : 10,681,698.69 = 4,729,647.42 : x - Step 2: Convert to fraction form
7,121,134.62/10,681,698.69 = 4,729,647.42/x - Step 3: Cross multiply
7,121,134.62x = 10,681,698.69 × 4,729,647.42 - Step 4: Simplify right side
7,121,134.62x = 50,520,668,650,375.88 - Step 5: Solve for x
x = 50,520,668,650,375.88/7,121,134.62 - Step 6: Final answer
x = 7,094,468.98
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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.