Finding the Fourth Proportional to 209,503,897.36, 289,124,388.84 and 116,684,446.48
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Solution
The fourth proportional to 209,503,897.36, 289,124,388.84 and 116,684,446.48 is: 161,029,554.58
Step by Step Solution
- Step 1: Write the proportion equation
209,503,897.36 : 289,124,388.84 = 116,684,446.48 : x - Step 2: Convert to fraction form
209,503,897.36/289,124,388.84 = 116,684,446.48/x - Step 3: Cross multiply
209,503,897.36x = 289,124,388.84 × 116,684,446.48 - Step 4: Simplify right side
209,503,897.36x = 33,736,319,275,663,688 - Step 5: Solve for x
x = 33,736,319,275,663,688/209,503,897.36 - Step 6: Final answer
x = 161,029,554.58
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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.