Finding the Fourth Proportional to 394,433,400.96, 544,492,440.09 and 235,719,530.46
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Solution
The fourth proportional to 394,433,400.96, 544,492,440.09 and 235,719,530.46 is: 325,397,144.37
Step by Step Solution
- Step 1: Write the proportion equation
394,433,400.96 : 544,492,440.09 = 235,719,530.46 : x - Step 2: Convert to fraction form
394,433,400.96/544,492,440.09 = 235,719,530.46/x - Step 3: Cross multiply
394,433,400.96x = 544,492,440.09 × 235,719,530.46 - Step 4: Simplify right side
394,433,400.96x = 128,347,502,317,034,496 - Step 5: Solve for x
x = 128,347,502,317,034,496/394,433,400.96 - Step 6: Final answer
x = 325,397,144.37
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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.