Finding the Fourth Proportional to 209,514,906.18, 289,130,649.19 and 121,459,949.35
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Solution
The fourth proportional to 209,514,906.18, 289,130,649.19 and 121,459,949.35 is: 167,614,775.70
Step by Step Solution
- Step 1: Write the proportion equation
209,514,906.18 : 289,130,649.19 = 121,459,949.35 : x - Step 2: Convert to fraction form
209,514,906.18/289,130,649.19 = 121,459,949.35/x - Step 3: Cross multiply
209,514,906.18x = 289,130,649.19 × 121,459,949.35 - Step 4: Simplify right side
209,514,906.18x = 35,117,794,005,123,540 - Step 5: Solve for x
x = 35,117,794,005,123,540/209,514,906.18 - Step 6: Final answer
x = 167,614,775.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.