Finding the Fourth Proportional to 27,878,373.36, 38,469,899.71 and 16,118,396.24
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Solution
The fourth proportional to 27,878,373.36, 38,469,899.71 and 16,118,396.24 is: 22,242,082.74
Step by Step Solution
- Step 1: Write the proportion equation
27,878,373.36 : 38,469,899.71 = 16,118,396.24 : x - Step 2: Convert to fraction form
27,878,373.36/38,469,899.71 = 16,118,396.24/x - Step 3: Cross multiply
27,878,373.36x = 38,469,899.71 × 16,118,396.24 - Step 4: Simplify right side
27,878,373.36x = 620,073,086,770,605.75 - Step 5: Solve for x
x = 620,073,086,770,605.75/27,878,373.36 - Step 6: Final answer
x = 22,242,082.74
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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.