Finding the Fourth Proportional to 8,365,318.12, 12,542,470.62 and 5,516,744.68
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Solution
The fourth proportional to 8,365,318.12, 12,542,470.62 and 5,516,744.68 is: 8,271,485.56
Step by Step Solution
- Step 1: Write the proportion equation
8,365,318.12 : 12,542,470.62 = 5,516,744.68 : x - Step 2: Convert to fraction form
8,365,318.12/12,542,470.62 = 5,516,744.68/x - Step 3: Cross multiply
8,365,318.12x = 12,542,470.62 × 5,516,744.68 - Step 4: Simplify right side
8,365,318.12x = 69,193,608,066,941.30 - Step 5: Solve for x
x = 69,193,608,066,941.30/8,365,318.12 - Step 6: Final answer
x = 8,271,485.56
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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.