Finding the Fourth Proportional to 20,738,117.10, 31,052,743.65 and 14,639,918.70
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Solution
The fourth proportional to 20,738,117.10, 31,052,743.65 and 14,639,918.70 is: 21,921,452.19
Step by Step Solution
- Step 1: Write the proportion equation
20,738,117.10 : 31,052,743.65 = 14,639,918.70 : x - Step 2: Convert to fraction form
20,738,117.10/31,052,743.65 = 14,639,918.70/x - Step 3: Cross multiply
20,738,117.10x = 31,052,743.65 × 14,639,918.70 - Step 4: Simplify right side
20,738,117.10x = 454,609,642,447,941.19 - Step 5: Solve for x
x = 454,609,642,447,941.19/20,738,117.10 - Step 6: Final answer
x = 21,921,452.19
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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.