Finding the Fourth Proportional to 289,588,605.20, 434,382,907.80 and 207,534,114.80
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Solution
The fourth proportional to 289,588,605.20, 434,382,907.80 and 207,534,114.80 is: 311,301,172.20
Step by Step Solution
- Step 1: Write the proportion equation
289,588,605.20 : 434,382,907.80 = 207,534,114.80 : x - Step 2: Convert to fraction form
289,588,605.20/434,382,907.80 = 207,534,114.80/x - Step 3: Cross multiply
289,588,605.20x = 434,382,907.80 × 207,534,114.80 - Step 4: Simplify right side
289,588,605.20x = 90,149,272,254,523,024 - Step 5: Solve for x
x = 90,149,272,254,523,024/289,588,605.20 - Step 6: Final answer
x = 311,301,172.20
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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.