Finding the Fourth Proportional to 172,373,956.20, 258,560,934.30 and 107,876,701.80
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Solution
The fourth proportional to 172,373,956.20, 258,560,934.30 and 107,876,701.80 is: 161,815,052.70
Step by Step Solution
- Step 1: Write the proportion equation
172,373,956.20 : 258,560,934.30 = 107,876,701.80 : x - Step 2: Convert to fraction form
172,373,956.20/258,560,934.30 = 107,876,701.80/x - Step 3: Cross multiply
172,373,956.20x = 258,560,934.30 × 107,876,701.80 - Step 4: Simplify right side
172,373,956.20x = 27,892,700,806,610,492 - Step 5: Solve for x
x = 27,892,700,806,610,492/172,373,956.20 - Step 6: Final answer
x = 161,815,052.70
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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.