Finding the Fourth Proportional to 217,729,133.44, 326,640,991.99 and 79,554,518.55
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Solution
The fourth proportional to 217,729,133.44, 326,640,991.99 and 79,554,518.55 is: 119,349,057.45
Step by Step Solution
- Step 1: Write the proportion equation
217,729,133.44 : 326,640,991.99 = 79,554,518.55 : x - Step 2: Convert to fraction form
217,729,133.44/326,640,991.99 = 79,554,518.55/x - Step 3: Cross multiply
217,729,133.44x = 326,640,991.99 × 79,554,518.55 - Step 4: Simplify right side
217,729,133.44x = 25,985,766,856,408,736 - Step 5: Solve for x
x = 25,985,766,856,408,736/217,729,133.44 - Step 6: Final answer
x = 119,349,057.45
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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.