Finding the Fourth Proportional to 18,381,687.80, 27,572,531.70 and 8,815,749.80
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Solution
The fourth proportional to 18,381,687.80, 27,572,531.70 and 8,815,749.80 is: 13,223,624.70
Step by Step Solution
- Step 1: Write the proportion equation
18,381,687.80 : 27,572,531.70 = 8,815,749.80 : x - Step 2: Convert to fraction form
18,381,687.80/27,572,531.70 = 8,815,749.80/x - Step 3: Cross multiply
18,381,687.80x = 27,572,531.70 × 8,815,749.80 - Step 4: Simplify right side
18,381,687.80x = 243,072,540,819,768.69 - Step 5: Solve for x
x = 243,072,540,819,768.69/18,381,687.80 - Step 6: Final answer
x = 13,223,624.70
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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.