Finding the Fourth Proportional to 20,430,556.26, 28,194,360.24 and 11,263,527.06
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Solution
The fourth proportional to 20,430,556.26, 28,194,360.24 and 11,263,527.06 is: 15,543,773.53
Step by Step Solution
- Step 1: Write the proportion equation
20,430,556.26 : 28,194,360.24 = 11,263,527.06 : x - Step 2: Convert to fraction form
20,430,556.26/28,194,360.24 = 11,263,527.06/x - Step 3: Cross multiply
20,430,556.26x = 28,194,360.24 × 11,263,527.06 - Step 4: Simplify right side
20,430,556.26x = 317,567,939,502,628.06 - Step 5: Solve for x
x = 317,567,939,502,628.06/20,430,556.26 - Step 6: Final answer
x = 15,543,773.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.