Finding the Fourth Proportional to 1,370,286,688.22, 1,890,944,994.49 and 743,741,664.07
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Solution
The fourth proportional to 1,370,286,688.22, 1,890,944,994.49 and 743,741,664.07 is: 1,026,336,013.44
Step by Step Solution
- Step 1: Write the proportion equation
1,370,286,688.22 : 1,890,944,994.49 = 743,741,664.07 : x - Step 2: Convert to fraction form
1,370,286,688.22/1,890,944,994.49 = 743,741,664.07/x - Step 3: Cross multiply
1,370,286,688.22x = 1,890,944,994.49 × 743,741,664.07 - Step 4: Simplify right side
1,370,286,688.22x = 1,406,374,576,856,414,208 - Step 5: Solve for x
x = 1,406,374,576,856,414,208/1,370,286,688.22 - Step 6: Final answer
x = 1,026,336,013.44
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1.5x scale
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.