Finding the Fourth Proportional to 20,198,454.14, 27,873,897.90 and 11,496,626.66
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Solution
The fourth proportional to 20,198,454.14, 27,873,897.90 and 11,496,626.66 is: 15,865,362.54
Step by Step Solution
- Step 1: Write the proportion equation
20,198,454.14 : 27,873,897.90 = 11,496,626.66 : x - Step 2: Convert to fraction form
20,198,454.14/27,873,897.90 = 11,496,626.66/x - Step 3: Cross multiply
20,198,454.14x = 27,873,897.90 × 11,496,626.66 - Step 4: Simplify right side
20,198,454.14x = 320,455,797,715,258 - Step 5: Solve for x
x = 320,455,797,715,258/20,198,454.14 - Step 6: Final answer
x = 15,865,362.54
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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.