Finding the Fourth Proportional to 13,574,809.44, 18,727,936.36 and 7,770,489.28
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Solution
The fourth proportional to 13,574,809.44, 18,727,936.36 and 7,770,489.28 is: 10,720,241.00
Step by Step Solution
- Step 1: Write the proportion equation
13,574,809.44 : 18,727,936.36 = 7,770,489.28 : x - Step 2: Convert to fraction form
13,574,809.44/18,727,936.36 = 7,770,489.28/x - Step 3: Cross multiply
13,574,809.44x = 18,727,936.36 × 7,770,489.28 - Step 4: Simplify right side
13,574,809.44x = 145,525,228,721,902.22 - Step 5: Solve for x
x = 145,525,228,721,902.22/13,574,809.44 - Step 6: Final answer
x = 10,720,241.00
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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.