Finding the Fourth Proportional to 19,865,772.72, 27,412,306.74 and 11,494,581.48
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Solution
The fourth proportional to 19,865,772.72, 27,412,306.74 and 11,494,581.48 is: 15,861,099.28
Step by Step Solution
- Step 1: Write the proportion equation
19,865,772.72 : 27,412,306.74 = 11,494,581.48 : x - Step 2: Convert to fraction form
19,865,772.72/27,412,306.74 = 11,494,581.48/x - Step 3: Cross multiply
19,865,772.72x = 27,412,306.74 × 11,494,581.48 - Step 4: Simplify right side
19,865,772.72x = 315,092,993,377,683.19 - Step 5: Solve for x
x = 315,092,993,377,683.19/19,865,772.72 - Step 6: Final answer
x = 15,861,099.28
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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.