Finding the Fourth Proportional to 7,768,310.48, 10,720,906.72 and 4,284,330.68
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Solution
The fourth proportional to 7,768,310.48, 10,720,906.72 and 4,284,330.68 is: 5,912,728.35
Step by Step Solution
- Step 1: Write the proportion equation
7,768,310.48 : 10,720,906.72 = 4,284,330.68 : x - Step 2: Convert to fraction form
7,768,310.48/10,720,906.72 = 4,284,330.68/x - Step 3: Cross multiply
7,768,310.48x = 10,720,906.72 × 4,284,330.68 - Step 4: Simplify right side
7,768,310.48x = 45,931,909,577,914.17 - Step 5: Solve for x
x = 45,931,909,577,914.17/7,768,310.48 - Step 6: Final answer
x = 5,912,728.35
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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.