Finding the Fourth Proportional to 289,588,604.70, 434,382,907.05 and 207,534,114.30
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Solution
The fourth proportional to 289,588,604.70, 434,382,907.05 and 207,534,114.30 is: 311,301,171.45
Step by Step Solution
- Step 1: Write the proportion equation
289,588,604.70 : 434,382,907.05 = 207,534,114.30 : x - Step 2: Convert to fraction form
289,588,604.70/434,382,907.05 = 207,534,114.30/x - Step 3: Cross multiply
289,588,604.70x = 434,382,907.05 × 207,534,114.30 - Step 4: Simplify right side
289,588,604.70x = 90,149,271,881,680,976 - Step 5: Solve for x
x = 90,149,271,881,680,976/289,588,604.70 - Step 6: Final answer
x = 311,301,171.45
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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.