Finding the Fourth Proportional to 19,855,512.72, 27,403,365.42 and 11,154,347.19
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Solution
The fourth proportional to 19,855,512.72, 27,403,365.42 and 11,154,347.19 is: 15,394,548.42
Step by Step Solution
- Step 1: Write the proportion equation
19,855,512.72 : 27,403,365.42 = 11,154,347.19 : x - Step 2: Convert to fraction form
19,855,512.72/27,403,365.42 = 11,154,347.19/x - Step 3: Cross multiply
19,855,512.72x = 27,403,365.42 × 11,154,347.19 - Step 4: Simplify right side
19,855,512.72x = 305,666,652,069,120.19 - Step 5: Solve for x
x = 305,666,652,069,120.19/19,855,512.72 - Step 6: Final answer
x = 15,394,548.42
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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.