Finding the Fourth Proportional to 20,269,874.88, 27,972,790.80 and 11,101,927.14
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Solution
The fourth proportional to 20,269,874.88, 27,972,790.80 and 11,101,927.14 is: 15,320,858.53
Step by Step Solution
- Step 1: Write the proportion equation
20,269,874.88 : 27,972,790.80 = 11,101,927.14 : x - Step 2: Convert to fraction form
20,269,874.88/27,972,790.80 = 11,101,927.14/x - Step 3: Cross multiply
20,269,874.88x = 27,972,790.80 × 11,101,927.14 - Step 4: Simplify right side
20,269,874.88x = 310,551,885,364,062.31 - Step 5: Solve for x
x = 310,551,885,364,062.31/20,269,874.88 - Step 6: Final answer
x = 15,320,858.53
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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.