Finding the Fourth Proportional to 698,691,431.70, 1,046,021,608.35 and 698,691,431.70
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Solution
The fourth proportional to 698,691,431.70, 1,046,021,608.35 and 698,691,431.70 is: 1,046,021,608.35
Step by Step Solution
- Step 1: Write the proportion equation
698,691,431.70 : 1,046,021,608.35 = 698,691,431.70 : x - Step 2: Convert to fraction form
698,691,431.70/1,046,021,608.35 = 698,691,431.70/x - Step 3: Cross multiply
698,691,431.70x = 1,046,021,608.35 × 698,691,431.70 - Step 4: Simplify right side
698,691,431.70x = 730,846,335,127,198,208 - Step 5: Solve for x
x = 730,846,335,127,198,208/698,691,431.70 - Step 6: Final answer
x = 1,046,021,608.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.