Finding the Fourth Proportional to 655,459,381.93, 904,534,309.98 and 354,044,692.09
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Solution
The fourth proportional to 655,459,381.93, 904,534,309.98 and 354,044,692.09 is: 488,581,871.11
Step by Step Solution
- Step 1: Write the proportion equation
655,459,381.93 : 904,534,309.98 = 354,044,692.09 : x - Step 2: Convert to fraction form
655,459,381.93/904,534,309.98 = 354,044,692.09/x - Step 3: Cross multiply
655,459,381.93x = 904,534,309.98 × 354,044,692.09 - Step 4: Simplify right side
655,459,381.93x = 320,245,571,263,085,888 - Step 5: Solve for x
x = 320,245,571,263,085,888/655,459,381.93 - Step 6: Final answer
x = 488,581,871.11
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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.