Finding the Fourth Proportional to 18,442,016.70, 27,639,405.45 and 14,160,964.20
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Solution
The fourth proportional to 18,442,016.70, 27,639,405.45 and 14,160,964.20 is: 21,223,309.65
Step by Step Solution
- Step 1: Write the proportion equation
18,442,016.70 : 27,639,405.45 = 14,160,964.20 : x - Step 2: Convert to fraction form
18,442,016.70/27,639,405.45 = 14,160,964.20/x - Step 3: Cross multiply
18,442,016.70x = 27,639,405.45 × 14,160,964.20 - Step 4: Simplify right side
18,442,016.70x = 391,400,631,086,734.88 - Step 5: Solve for x
x = 391,400,631,086,734.88/18,442,016.70 - Step 6: Final answer
x = 21,223,309.65
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1.5x scale
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.