Finding the Fourth Proportional to 17,739,421.80, 26,609,132.70 and 15,826,234.20
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Solution
The fourth proportional to 17,739,421.80, 26,609,132.70 and 15,826,234.20 is: 23,739,351.30
Step by Step Solution
- Step 1: Write the proportion equation
17,739,421.80 : 26,609,132.70 = 15,826,234.20 : x - Step 2: Convert to fraction form
17,739,421.80/26,609,132.70 = 15,826,234.20/x - Step 3: Cross multiply
17,739,421.80x = 26,609,132.70 × 15,826,234.20 - Step 4: Simplify right side
17,739,421.80x = 421,122,365,969,078.31 - Step 5: Solve for x
x = 421,122,365,969,078.31/17,739,421.80 - Step 6: Final answer
x = 23,739,351.30
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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.