Finding the Fourth Proportional to 4,192,128,831.80, 6,288,193,247.70 and 1,431,344,012.60
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Solution
The fourth proportional to 4,192,128,831.80, 6,288,193,247.70 and 1,431,344,012.60 is: 2,147,016,018.90
Step by Step Solution
- Step 1: Write the proportion equation
4,192,128,831.80 : 6,288,193,247.70 = 1,431,344,012.60 : x - Step 2: Convert to fraction form
4,192,128,831.80/6,288,193,247.70 = 1,431,344,012.60/x - Step 3: Cross multiply
4,192,128,831.80x = 6,288,193,247.70 × 1,431,344,012.60 - Step 4: Simplify right side
4,192,128,831.80x = 9,000,567,755,167,142,912 - Step 5: Solve for x
x = 9,000,567,755,167,142,912/4,192,128,831.80 - Step 6: Final answer
x = 2,147,016,018.90
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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.