Finding the Fourth Proportional to 36,908,468.20, 55,362,702.30 and 21,539,981.80
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Solution
The fourth proportional to 36,908,468.20, 55,362,702.30 and 21,539,981.80 is: 32,309,972.70
Step by Step Solution
- Step 1: Write the proportion equation
36,908,468.20 : 55,362,702.30 = 21,539,981.80 : x - Step 2: Convert to fraction form
36,908,468.20/55,362,702.30 = 21,539,981.80/x - Step 3: Cross multiply
36,908,468.20x = 55,362,702.30 × 21,539,981.80 - Step 4: Simplify right side
36,908,468.20x = 1,192,511,599,940,818 - Step 5: Solve for x
x = 1,192,511,599,940,818/36,908,468.20 - Step 6: Final answer
x = 32,309,972.70
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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.