Finding the Fourth Proportional to 19,682,795.60, 29,524,193.40 and 12,085,125.20
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Solution
The fourth proportional to 19,682,795.60, 29,524,193.40 and 12,085,125.20 is: 18,127,687.80
Step by Step Solution
- Step 1: Write the proportion equation
19,682,795.60 : 29,524,193.40 = 12,085,125.20 : x - Step 2: Convert to fraction form
19,682,795.60/29,524,193.40 = 12,085,125.20/x - Step 3: Cross multiply
19,682,795.60x = 29,524,193.40 × 12,085,125.20 - Step 4: Simplify right side
19,682,795.60x = 356,803,573,668,013.62 - Step 5: Solve for x
x = 356,803,573,668,013.62/19,682,795.60 - Step 6: Final answer
x = 18,127,687.80
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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.