Finding the Fourth Proportional to 6,912,489,739.28, 9,538,209,671.37 and 4,198,345,153.70
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Solution
The fourth proportional to 6,912,489,739.28, 9,538,209,671.37 and 4,198,345,153.70 is: 5,793,093,061.86
Step by Step Solution
- Step 1: Write the proportion equation
6,912,489,739.28 : 9,538,209,671.37 = 4,198,345,153.70 : x - Step 2: Convert to fraction form
6,912,489,739.28/9,538,209,671.37 = 4,198,345,153.70/x - Step 3: Cross multiply
6,912,489,739.28x = 9,538,209,671.37 × 4,198,345,153.70 - Step 4: Simplify right side
6,912,489,739.28x = 40,044,696,348,770,713,600 - Step 5: Solve for x
x = 40,044,696,348,770,713,600/6,912,489,739.28 - Step 6: Final answer
x = 5,793,093,061.86
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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.