Finding the Fourth Proportional to 28,393,378, 39,182,861.82 and 16,171,372.24
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Solution
The fourth proportional to 28,393,378, 39,182,861.82 and 16,171,372.24 is: 22,316,493.79
Step by Step Solution
- Step 1: Write the proportion equation
28,393,378 : 39,182,861.82 = 16,171,372.24 : x - Step 2: Convert to fraction form
28,393,378/39,182,861.82 = 16,171,372.24/x - Step 3: Cross multiply
28,393,378x = 39,182,861.82 × 16,171,372.24 - Step 4: Simplify right side
28,393,378x = 633,640,643,919,703.88 - Step 5: Solve for x
x = 633,640,643,919,703.88/28,393,378 - Step 6: Final answer
x = 22,316,493.79
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1.5x scale
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.