Finding the Fourth Proportional to 20,228,231.61, 27,891,107.33 and 16,348,756.05
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Solution
The fourth proportional to 20,228,231.61, 27,891,107.33 and 16,348,756.05 is: 22,542,005.57
Step by Step Solution
- Step 1: Write the proportion equation
20,228,231.61 : 27,891,107.33 = 16,348,756.05 : x - Step 2: Convert to fraction form
20,228,231.61/27,891,107.33 = 16,348,756.05/x - Step 3: Cross multiply
20,228,231.61x = 27,891,107.33 × 16,348,756.05 - Step 4: Simplify right side
20,228,231.61x = 455,984,909,620,793.06 - Step 5: Solve for x
x = 455,984,909,620,793.06/20,228,231.61 - Step 6: Final answer
x = 22,542,005.57
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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.