Finding the Fourth Proportional to 714,733,717.29, 986,356,480.31 and 397,207,344.08
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Solution
The fourth proportional to 714,733,717.29, 986,356,480.31 and 397,207,344.08 is: 548,159,445.08
Step by Step Solution
- Step 1: Write the proportion equation
714,733,717.29 : 986,356,480.31 = 397,207,344.08 : x - Step 2: Convert to fraction form
714,733,717.29/986,356,480.31 = 397,207,344.08/x - Step 3: Cross multiply
714,733,717.29x = 986,356,480.31 × 397,207,344.08 - Step 4: Simplify right side
714,733,717.29x = 391,788,037,853,114,048 - Step 5: Solve for x
x = 391,788,037,853,114,048/714,733,717.29 - Step 6: Final answer
x = 548,159,445.08
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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.