Finding the Fourth Proportional to 129,328,864.80, 194,067,946.80 and 48,557,997.60
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Solution
The fourth proportional to 129,328,864.80, 194,067,946.80 and 48,557,997.60 is: 72,865,024.44
Step by Step Solution
- Step 1: Write the proportion equation
129,328,864.80 : 194,067,946.80 = 48,557,997.60 : x - Step 2: Convert to fraction form
129,328,864.80/194,067,946.80 = 48,557,997.60/x - Step 3: Cross multiply
129,328,864.80x = 194,067,946.80 × 48,557,997.60 - Step 4: Simplify right side
129,328,864.80x = 9,423,550,894,951,328 - Step 5: Solve for x
x = 9,423,550,894,951,328/129,328,864.80 - Step 6: Final answer
x = 72,865,024.44
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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.