Finding the Fourth Proportional to 328,974,670.05, 493,458,199.11 and 79,981,340.19
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Solution
The fourth proportional to 328,974,670.05, 493,458,199.11 and 79,981,340.19 is: 119,971,084.97
Step by Step Solution
- Step 1: Write the proportion equation
328,974,670.05 : 493,458,199.11 = 79,981,340.19 : x - Step 2: Convert to fraction form
328,974,670.05/493,458,199.11 = 79,981,340.19/x - Step 3: Cross multiply
328,974,670.05x = 493,458,199.11 × 79,981,340.19 - Step 4: Simplify right side
328,974,670.05x = 39,467,448,092,561,664 - Step 5: Solve for x
x = 39,467,448,092,561,664/328,974,670.05 - Step 6: Final answer
x = 119,971,084.97
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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.