Finding the Fourth Proportional to 355,007,714.88, 489,901,245.40 and 198,376,108.92
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Solution
The fourth proportional to 355,007,714.88, 489,901,245.40 and 198,376,108.92 is: 273,753,777.01
Step by Step Solution
- Step 1: Write the proportion equation
355,007,714.88 : 489,901,245.40 = 198,376,108.92 : x - Step 2: Convert to fraction form
355,007,714.88/489,901,245.40 = 198,376,108.92/x - Step 3: Cross multiply
355,007,714.88x = 489,901,245.40 × 198,376,108.92 - Step 4: Simplify right side
355,007,714.88x = 97,184,702,817,514,032 - Step 5: Solve for x
x = 97,184,702,817,514,032/355,007,714.88 - Step 6: Final answer
x = 273,753,777.01
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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.