Finding the Fourth Proportional to 8,102,108.52, 11,134,147.89 and 7,727,431.68
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Solution
The fourth proportional to 8,102,108.52, 11,134,147.89 and 7,727,431.68 is: 10,619,256.32
Step by Step Solution
- Step 1: Write the proportion equation
8,102,108.52 : 11,134,147.89 = 7,727,431.68 : x - Step 2: Convert to fraction form
8,102,108.52/11,134,147.89 = 7,727,431.68/x - Step 3: Cross multiply
8,102,108.52x = 11,134,147.89 × 7,727,431.68 - Step 4: Simplify right side
8,102,108.52x = 86,038,367,134,991.16 - Step 5: Solve for x
x = 86,038,367,134,991.16/8,102,108.52 - Step 6: Final answer
x = 10,619,256.32
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.