Finding the Fourth Proportional to 15,323,888.24, 21,147,918.72 and 8,448,359.84
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Solution
The fourth proportional to 15,323,888.24, 21,147,918.72 and 8,448,359.84 is: 11,659,261.96
Step by Step Solution
- Step 1: Write the proportion equation
15,323,888.24 : 21,147,918.72 = 8,448,359.84 : x - Step 2: Convert to fraction form
15,323,888.24/21,147,918.72 = 8,448,359.84/x - Step 3: Cross multiply
15,323,888.24x = 21,147,918.72 × 8,448,359.84 - Step 4: Simplify right side
15,323,888.24x = 178,665,227,213,632.19 - Step 5: Solve for x
x = 178,665,227,213,632.19/15,323,888.24 - Step 6: Final answer
x = 11,659,261.96
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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.