Finding the Fourth Proportional to 20,093,933.13, 30,102,868.35 and 11,871,987.42
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Solution
The fourth proportional to 20,093,933.13, 30,102,868.35 and 11,871,987.42 is: 17,785,511.28
Step by Step Solution
- Step 1: Write the proportion equation
20,093,933.13 : 30,102,868.35 = 11,871,987.42 : x - Step 2: Convert to fraction form
20,093,933.13/30,102,868.35 = 11,871,987.42/x - Step 3: Cross multiply
20,093,933.13x = 30,102,868.35 × 11,871,987.42 - Step 4: Simplify right side
20,093,933.13x = 357,380,874,357,116.19 - Step 5: Solve for x
x = 357,380,874,357,116.19/20,093,933.13 - Step 6: Final answer
x = 17,785,511.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.