Finding the Fourth Proportional to 318,706,227.88, 439,837,118.02 and 177,586,816.12
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Solution
The fourth proportional to 318,706,227.88, 439,837,118.02 and 177,586,816.12 is: 245,082,356.63
Step by Step Solution
- Step 1: Write the proportion equation
318,706,227.88 : 439,837,118.02 = 177,586,816.12 : x - Step 2: Convert to fraction form
318,706,227.88/439,837,118.02 = 177,586,816.12/x - Step 3: Cross multiply
318,706,227.88x = 439,837,118.02 × 177,586,816.12 - Step 4: Simplify right side
318,706,227.88x = 78,109,273,400,568,480 - Step 5: Solve for x
x = 78,109,273,400,568,480/318,706,227.88 - Step 6: Final answer
x = 245,082,356.63
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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.