Finding the Fourth Proportional to 1,395,543,604.22, 1,925,863,087.92 and 769,034,451.68
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Solution
The fourth proportional to 1,395,543,604.22, 1,925,863,087.92 and 769,034,451.68 is: 1,061,274,659.82
Step by Step Solution
- Step 1: Write the proportion equation
1,395,543,604.22 : 1,925,863,087.92 = 769,034,451.68 : x - Step 2: Convert to fraction form
1,395,543,604.22/1,925,863,087.92 = 769,034,451.68/x - Step 3: Cross multiply
1,395,543,604.22x = 1,925,863,087.92 × 769,034,451.68 - Step 4: Simplify right side
1,395,543,604.22x = 1,481,055,063,829,308,672 - Step 5: Solve for x
x = 1,481,055,063,829,308,672/1,395,543,604.22 - Step 6: Final answer
x = 1,061,274,659.82
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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.