Finding the Fourth Proportional to 27,641,930.40, 38,145,603.60 and 15,252,135.84
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Solution
The fourth proportional to 27,641,930.40, 38,145,603.60 and 15,252,135.84 is: 21,047,803.80
Step by Step Solution
- Step 1: Write the proportion equation
27,641,930.40 : 38,145,603.60 = 15,252,135.84 : x - Step 2: Convert to fraction form
27,641,930.40/38,145,603.60 = 15,252,135.84/x - Step 3: Cross multiply
27,641,930.40x = 38,145,603.60 × 15,252,135.84 - Step 4: Simplify right side
27,641,930.40x = 581,801,927,805,993 - Step 5: Solve for x
x = 581,801,927,805,993/27,641,930.40 - Step 6: Final answer
x = 21,047,803.80
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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.