Finding the Fourth Proportional to 18,665,164.79, 27,997,615.96 and 5,201,992.79
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Solution
The fourth proportional to 18,665,164.79, 27,997,615.96 and 5,201,992.79 is: 7,802,952.61
Step by Step Solution
- Step 1: Write the proportion equation
18,665,164.79 : 27,997,615.96 = 5,201,992.79 : x - Step 2: Convert to fraction form
18,665,164.79/27,997,615.96 = 5,201,992.79/x - Step 3: Cross multiply
18,665,164.79x = 27,997,615.96 × 5,201,992.79 - Step 4: Simplify right side
18,665,164.79x = 145,643,396,195,110.88 - Step 5: Solve for x
x = 145,643,396,195,110.88/18,665,164.79 - Step 6: Final answer
x = 7,802,952.61
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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.