Finding the Fourth Proportional to 38,363,526.40, 57,450,811.20 and 18,145,148.80
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Solution
The fourth proportional to 38,363,526.40, 57,450,811.20 and 18,145,148.80 is: 27,173,036.88
Step by Step Solution
- Step 1: Write the proportion equation
38,363,526.40 : 57,450,811.20 = 18,145,148.80 : x - Step 2: Convert to fraction form
38,363,526.40/57,450,811.20 = 18,145,148.80/x - Step 3: Cross multiply
38,363,526.40x = 57,450,811.20 × 18,145,148.80 - Step 4: Simplify right side
38,363,526.40x = 1,042,453,517,904,706.62 - Step 5: Solve for x
x = 1,042,453,517,904,706.62/38,363,526.40 - Step 6: Final answer
x = 27,173,036.88
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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.