Finding the Fourth Proportional to 289,588,605.70, 434,382,908.55 and 207,534,115.30
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Solution
The fourth proportional to 289,588,605.70, 434,382,908.55 and 207,534,115.30 is: 311,301,172.95
Step by Step Solution
- Step 1: Write the proportion equation
289,588,605.70 : 434,382,908.55 = 207,534,115.30 : x - Step 2: Convert to fraction form
289,588,605.70/434,382,908.55 = 207,534,115.30/x - Step 3: Cross multiply
289,588,605.70x = 434,382,908.55 × 207,534,115.30 - Step 4: Simplify right side
289,588,605.70x = 90,149,272,627,365,056 - Step 5: Solve for x
x = 90,149,272,627,365,056/289,588,605.70 - Step 6: Final answer
x = 311,301,172.95
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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.