Finding the Fourth Proportional to 14,701,278.72, 20,288,203.20 and 8,901,121.44
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Solution
The fourth proportional to 14,701,278.72, 20,288,203.20 and 8,901,121.44 is: 12,283,813.12
Step by Step Solution
- Step 1: Write the proportion equation
14,701,278.72 : 20,288,203.20 = 8,901,121.44 : x - Step 2: Convert to fraction form
14,701,278.72/20,288,203.20 = 8,901,121.44/x - Step 3: Cross multiply
14,701,278.72x = 20,288,203.20 × 8,901,121.44 - Step 4: Simplify right side
14,701,278.72x = 180,587,760,482,596.59 - Step 5: Solve for x
x = 180,587,760,482,596.59/14,701,278.72 - Step 6: Final answer
x = 12,283,813.12
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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.