Finding the Fourth Proportional to 12,982,732.80, 19,475,942.40 and 4,006,348.80
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Solution
The fourth proportional to 12,982,732.80, 19,475,942.40 and 4,006,348.80 is: 6,010,091.99
Step by Step Solution
- Step 1: Write the proportion equation
12,982,732.80 : 19,475,942.40 = 4,006,348.80 : x - Step 2: Convert to fraction form
12,982,732.80/19,475,942.40 = 4,006,348.80/x - Step 3: Cross multiply
12,982,732.80x = 19,475,942.40 × 4,006,348.80 - Step 4: Simplify right side
12,982,732.80x = 78,027,418,463,109.11 - Step 5: Solve for x
x = 78,027,418,463,109.11/12,982,732.80 - Step 6: Final answer
x = 6,010,091.99
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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.