Finding the Fourth Proportional to 272,950,336.20, 409,425,504.30 and 169,638,205.80
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Solution
The fourth proportional to 272,950,336.20, 409,425,504.30 and 169,638,205.80 is: 254,457,308.70
Step by Step Solution
- Step 1: Write the proportion equation
272,950,336.20 : 409,425,504.30 = 169,638,205.80 : x - Step 2: Convert to fraction form
272,950,336.20/409,425,504.30 = 169,638,205.80/x - Step 3: Cross multiply
272,950,336.20x = 409,425,504.30 × 169,638,205.80 - Step 4: Simplify right side
272,950,336.20x = 69,454,207,958,212,192 - Step 5: Solve for x
x = 69,454,207,958,212,192/272,950,336.20 - Step 6: Final answer
x = 254,457,308.70
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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.