Finding the Fourth Proportional to 20,430,554.27, 28,194,357.49 and 11,263,525.07
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Solution
The fourth proportional to 20,430,554.27, 28,194,357.49 and 11,263,525.07 is: 15,543,770.77
Step by Step Solution
- Step 1: Write the proportion equation
20,430,554.27 : 28,194,357.49 = 11,263,525.07 : x - Step 2: Convert to fraction form
20,430,554.27/28,194,357.49 = 11,263,525.07/x - Step 3: Cross multiply
20,430,554.27x = 28,194,357.49 × 11,263,525.07 - Step 4: Simplify right side
20,430,554.27x = 317,567,852,252,026.69 - Step 5: Solve for x
x = 317,567,852,252,026.69/20,430,554.27 - Step 6: Final answer
x = 15,543,770.77
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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.