Finding the Fourth Proportional to 655,459,381.82, 904,534,309.83 and 354,044,691.99
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Solution
The fourth proportional to 655,459,381.82, 904,534,309.83 and 354,044,691.99 is: 488,581,870.97
Step by Step Solution
- Step 1: Write the proportion equation
655,459,381.82 : 904,534,309.83 = 354,044,691.99 : x - Step 2: Convert to fraction form
655,459,381.82/904,534,309.83 = 354,044,691.99/x - Step 3: Cross multiply
655,459,381.82x = 904,534,309.83 × 354,044,691.99 - Step 4: Simplify right side
655,459,381.82x = 320,245,571,111,856,704 - Step 5: Solve for x
x = 320,245,571,111,856,704/655,459,381.82 - Step 6: Final answer
x = 488,581,870.97
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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.