Finding the Fourth Proportional to 18,451,017.20, 27,676,525.80 and 4,987,845.20
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Solution
The fourth proportional to 18,451,017.20, 27,676,525.80 and 4,987,845.20 is: 7,481,767.80
Step by Step Solution
- Step 1: Write the proportion equation
18,451,017.20 : 27,676,525.80 = 4,987,845.20 : x - Step 2: Convert to fraction form
18,451,017.20/27,676,525.80 = 4,987,845.20/x - Step 3: Cross multiply
18,451,017.20x = 27,676,525.80 × 4,987,845.20 - Step 4: Simplify right side
18,451,017.20x = 138,046,226,364,206.17 - Step 5: Solve for x
x = 138,046,226,364,206.17/18,451,017.20 - Step 6: Final answer
x = 7,481,767.80
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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.