Finding the Fourth Proportional to 18,991,092.12, 26,207,721.90 and 11,149,069.02
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Solution
The fourth proportional to 18,991,092.12, 26,207,721.90 and 11,149,069.02 is: 15,385,723.92
Step by Step Solution
- Step 1: Write the proportion equation
18,991,092.12 : 26,207,721.90 = 11,149,069.02 : x - Step 2: Convert to fraction form
18,991,092.12/26,207,721.90 = 11,149,069.02/x - Step 3: Cross multiply
18,991,092.12x = 26,207,721.90 × 11,149,069.02 - Step 4: Simplify right side
18,991,092.12x = 292,191,700,320,065.50 - Step 5: Solve for x
x = 292,191,700,320,065.50/18,991,092.12 - Step 6: Final answer
x = 15,385,723.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.