Finding the Fourth Proportional to 20,019,120.31, 27,625,922.40 and 11,316,921.49
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Solution
The fourth proportional to 20,019,120.31, 27,625,922.40 and 11,316,921.49 is: 15,617,089.56
Step by Step Solution
- Step 1: Write the proportion equation
20,019,120.31 : 27,625,922.40 = 11,316,921.49 : x - Step 2: Convert to fraction form
20,019,120.31/27,625,922.40 = 11,316,921.49/x - Step 3: Cross multiply
20,019,120.31x = 27,625,922.40 × 11,316,921.49 - Step 4: Simplify right side
20,019,120.31x = 312,640,394,889,632.38 - Step 5: Solve for x
x = 312,640,394,889,632.38/20,019,120.31 - Step 6: Final answer
x = 15,617,089.56
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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.