Finding the Fourth Proportional to 218,110,938.80, 326,888,545.80 and 115,923,930.80
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Solution
The fourth proportional to 218,110,938.80, 326,888,545.80 and 115,923,930.80 is: 173,738,214.92
Step by Step Solution
- Step 1: Write the proportion equation
218,110,938.80 : 326,888,545.80 = 115,923,930.80 : x - Step 2: Convert to fraction form
218,110,938.80/326,888,545.80 = 115,923,930.80/x - Step 3: Cross multiply
218,110,938.80x = 326,888,545.80 × 115,923,930.80 - Step 4: Simplify right side
218,110,938.80x = 37,894,205,162,631,832 - Step 5: Solve for x
x = 37,894,205,162,631,832/218,110,938.80 - Step 6: Final answer
x = 173,738,214.92
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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.