Finding the Fourth Proportional to 18,391,442.99, 27,587,147.76 and 8,673,789.15
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Solution
The fourth proportional to 18,391,442.99, 27,587,147.76 and 8,673,789.15 is: 13,010,675.84
Step by Step Solution
- Step 1: Write the proportion equation
18,391,442.99 : 27,587,147.76 = 8,673,789.15 : x - Step 2: Convert to fraction form
18,391,442.99/27,587,147.76 = 8,673,789.15/x - Step 3: Cross multiply
18,391,442.99x = 27,587,147.76 × 8,673,789.15 - Step 4: Simplify right side
18,391,442.99x = 239,285,102,920,134.84 - Step 5: Solve for x
x = 239,285,102,920,134.84/18,391,442.99 - Step 6: Final answer
x = 13,010,675.84
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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.