Finding the Fourth Proportional to 38,720,121.20, 58,080,181.80 and 16,045,305.20
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Solution
The fourth proportional to 38,720,121.20, 58,080,181.80 and 16,045,305.20 is: 24,067,957.80
Step by Step Solution
- Step 1: Write the proportion equation
38,720,121.20 : 58,080,181.80 = 16,045,305.20 : x - Step 2: Convert to fraction form
38,720,121.20/58,080,181.80 = 16,045,305.20/x - Step 3: Cross multiply
38,720,121.20x = 58,080,181.80 × 16,045,305.20 - Step 4: Simplify right side
38,720,121.20x = 931,914,243,052,485.25 - Step 5: Solve for x
x = 931,914,243,052,485.25/38,720,121.20 - Step 6: Final answer
x = 24,067,957.80
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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.