Finding the Fourth Proportional to 1,135,719,146.92, 1,567,297,145.70 and 614,198,378.92
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Solution
The fourth proportional to 1,135,719,146.92, 1,567,297,145.70 and 614,198,378.92 is: 847,596,317.09
Step by Step Solution
- Step 1: Write the proportion equation
1,135,719,146.92 : 1,567,297,145.70 = 614,198,378.92 : x - Step 2: Convert to fraction form
1,135,719,146.92/1,567,297,145.70 = 614,198,378.92/x - Step 3: Cross multiply
1,135,719,146.92x = 1,567,297,145.70 × 614,198,378.92 - Step 4: Simplify right side
1,135,719,146.92x = 962,631,366,174,883,072 - Step 5: Solve for x
x = 962,631,366,174,883,072/1,135,719,146.92 - Step 6: Final answer
x = 847,596,317.09
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Double scale
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Similar ratio
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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.