Finding the Fourth Proportional to 2,061,867,968.09, 2,845,471,493.97 and 1,215,131,027.21
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Solution
The fourth proportional to 2,061,867,968.09, 2,845,471,493.97 and 1,215,131,027.21 is: 1,676,936,037.07
Step by Step Solution
- Step 1: Write the proportion equation
2,061,867,968.09 : 2,845,471,493.97 = 1,215,131,027.21 : x - Step 2: Convert to fraction form
2,061,867,968.09/2,845,471,493.97 = 1,215,131,027.21/x - Step 3: Cross multiply
2,061,867,968.09x = 2,845,471,493.97 × 1,215,131,027.21 - Step 4: Simplify right side
2,061,867,968.09x = 3,457,620,699,364,539,392 - Step 5: Solve for x
x = 3,457,620,699,364,539,392/2,061,867,968.09 - Step 6: Final answer
x = 1,676,936,037.07
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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.