Finding the Fourth Proportional to 38,363,438.40, 57,450,679.20 and 18,145,060.80
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Solution
The fourth proportional to 38,363,438.40, 57,450,679.20 and 18,145,060.80 is: 27,172,905.00
Step by Step Solution
- Step 1: Write the proportion equation
38,363,438.40 : 57,450,679.20 = 18,145,060.80 : x - Step 2: Convert to fraction form
38,363,438.40/57,450,679.20 = 18,145,060.80/x - Step 3: Cross multiply
38,363,438.40x = 57,450,679.20 × 18,145,060.80 - Step 4: Simplify right side
38,363,438.40x = 1,042,446,067,085,295.50 - Step 5: Solve for x
x = 1,042,446,067,085,295.50/38,363,438.40 - Step 6: Final answer
x = 27,172,905.00
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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.