Finding the Fourth Proportional to 18,239,470.56, 27,341,163.60 and 8,637,976.80
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Solution
The fourth proportional to 18,239,470.56, 27,341,163.60 and 8,637,976.80 is: 12,948,420.63
Step by Step Solution
- Step 1: Write the proportion equation
18,239,470.56 : 27,341,163.60 = 8,637,976.80 : x - Step 2: Convert to fraction form
18,239,470.56/27,341,163.60 = 8,637,976.80/x - Step 3: Cross multiply
18,239,470.56x = 27,341,163.60 × 8,637,976.80 - Step 4: Simplify right side
18,239,470.56x = 236,172,336,861,804.50 - Step 5: Solve for x
x = 236,172,336,861,804.50/18,239,470.56 - Step 6: Final answer
x = 12,948,420.63
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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.