Finding the Fourth Proportional to 18,218,792.70, 27,328,189.05 and 7,432,508.70
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Solution
The fourth proportional to 18,218,792.70, 27,328,189.05 and 7,432,508.70 is: 11,148,763.05
Step by Step Solution
- Step 1: Write the proportion equation
18,218,792.70 : 27,328,189.05 = 7,432,508.70 : x - Step 2: Convert to fraction form
18,218,792.70/27,328,189.05 = 7,432,508.70/x - Step 3: Cross multiply
18,218,792.70x = 27,328,189.05 × 7,432,508.70 - Step 4: Simplify right side
18,218,792.70x = 203,117,002,869,369.75 - Step 5: Solve for x
x = 203,117,002,869,369.75/18,218,792.70 - Step 6: Final answer
x = 11,148,763.05
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1.5x scale
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.