Finding the Fourth Proportional to 18,589,673.20, 27,884,509.80 and 14,285,001.10
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Solution
The fourth proportional to 18,589,673.20, 27,884,509.80 and 14,285,001.10 is: 21,427,501.65
Step by Step Solution
- Step 1: Write the proportion equation
18,589,673.20 : 27,884,509.80 = 14,285,001.10 : x - Step 2: Convert to fraction form
18,589,673.20/27,884,509.80 = 14,285,001.10/x - Step 3: Cross multiply
18,589,673.20x = 27,884,509.80 × 14,285,001.10 - Step 4: Simplify right side
18,589,673.20x = 398,330,253,165,960.75 - Step 5: Solve for x
x = 398,330,253,165,960.75/18,589,673.20 - Step 6: Final answer
x = 21,427,501.65
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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.