Finding the Fourth Proportional to 1,625,932,304.80, 2,243,786,580.39 and 921,084,286.23
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Solution
The fourth proportional to 1,625,932,304.80, 2,243,786,580.39 and 921,084,286.23 is: 1,271,096,314.87
Step by Step Solution
- Step 1: Write the proportion equation
1,625,932,304.80 : 2,243,786,580.39 = 921,084,286.23 : x - Step 2: Convert to fraction form
1,625,932,304.80/2,243,786,580.39 = 921,084,286.23/x - Step 3: Cross multiply
1,625,932,304.80x = 2,243,786,580.39 × 921,084,286.23 - Step 4: Simplify right side
1,625,932,304.80x = 2,066,716,560,854,475,520 - Step 5: Solve for x
x = 2,066,716,560,854,475,520/1,625,932,304.80 - Step 6: Final answer
x = 1,271,096,314.87
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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.