Finding the Fourth Proportional to 221,229,217.80, 331,843,826.70 and 119,192,545.80
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Solution
The fourth proportional to 221,229,217.80, 331,843,826.70 and 119,192,545.80 is: 178,788,818.70
Step by Step Solution
- Step 1: Write the proportion equation
221,229,217.80 : 331,843,826.70 = 119,192,545.80 : x - Step 2: Convert to fraction form
221,229,217.80/331,843,826.70 = 119,192,545.80/x - Step 3: Cross multiply
221,229,217.80x = 331,843,826.70 × 119,192,545.80 - Step 4: Simplify right side
221,229,217.80x = 39,553,310,512,387,008 - Step 5: Solve for x
x = 39,553,310,512,387,008/221,229,217.80 - Step 6: Final answer
x = 178,788,818.70
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1.5x scale
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.