Finding the Fourth Proportional to 209,832,794.49, 289,569,535.32 and 115,744,819.05
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Solution
The fourth proportional to 209,832,794.49, 289,569,535.32 and 115,744,819.05 is: 159,728,004.14
Step by Step Solution
- Step 1: Write the proportion equation
209,832,794.49 : 289,569,535.32 = 115,744,819.05 : x - Step 2: Convert to fraction form
209,832,794.49/289,569,535.32 = 115,744,819.05/x - Step 3: Cross multiply
209,832,794.49x = 289,569,535.32 × 115,744,819.05 - Step 4: Simplify right side
209,832,794.49x = 33,516,173,468,005,984 - Step 5: Solve for x
x = 33,516,173,468,005,984/209,832,794.49 - Step 6: Final answer
x = 159,728,004.14
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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.