Finding the Fourth Proportional to 8,161,311.36, 11,244,749.76 and 5,403,319.68
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Solution
The fourth proportional to 8,161,311.36, 11,244,749.76 and 5,403,319.68 is: 7,444,756.73
Step by Step Solution
- Step 1: Write the proportion equation
8,161,311.36 : 11,244,749.76 = 5,403,319.68 : x - Step 2: Convert to fraction form
8,161,311.36/11,244,749.76 = 5,403,319.68/x - Step 3: Cross multiply
8,161,311.36x = 11,244,749.76 × 5,403,319.68 - Step 4: Simplify right side
8,161,311.36x = 60,758,977,674,883.27 - Step 5: Solve for x
x = 60,758,977,674,883.27/8,161,311.36 - Step 6: Final answer
x = 7,444,756.73
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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.