Finding the Fourth Proportional to 497,918,344.67, 687,187,568.97 and 283,389,148.97
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Solution
The fourth proportional to 497,918,344.67, 687,187,568.97 and 283,389,148.97 is: 391,111,318.63
Step by Step Solution
- Step 1: Write the proportion equation
497,918,344.67 : 687,187,568.97 = 283,389,148.97 : x - Step 2: Convert to fraction form
497,918,344.67/687,187,568.97 = 283,389,148.97/x - Step 3: Cross multiply
497,918,344.67x = 687,187,568.97 × 283,389,148.97 - Step 4: Simplify right side
497,918,344.67x = 194,741,500,349,735,520 - Step 5: Solve for x
x = 194,741,500,349,735,520/497,918,344.67 - Step 6: Final answer
x = 391,111,318.63
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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.