Finding the Fourth Proportional to 25,890,704.80, 38,860,940.40 and 13,125,623.20
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Solution
The fourth proportional to 25,890,704.80, 38,860,940.40 and 13,125,623.20 is: 19,701,049.66
Step by Step Solution
- Step 1: Write the proportion equation
25,890,704.80 : 38,860,940.40 = 13,125,623.20 : x - Step 2: Convert to fraction form
25,890,704.80/38,860,940.40 = 13,125,623.20/x - Step 3: Cross multiply
25,890,704.80x = 38,860,940.40 × 13,125,623.20 - Step 4: Simplify right side
25,890,704.80x = 510,074,060,888,057.25 - Step 5: Solve for x
x = 510,074,060,888,057.25/25,890,704.80 - Step 6: Final answer
x = 19,701,049.66
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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.