Finding the Fourth Proportional to 1,036,253,714.97, 1,555,079,966.28 and 405,907,585.73
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Solution
The fourth proportional to 1,036,253,714.97, 1,555,079,966.28 and 405,907,585.73 is: 609,135,335.88
Step by Step Solution
- Step 1: Write the proportion equation
1,036,253,714.97 : 1,555,079,966.28 = 405,907,585.73 : x - Step 2: Convert to fraction form
1,036,253,714.97/1,555,079,966.28 = 405,907,585.73/x - Step 3: Cross multiply
1,036,253,714.97x = 1,555,079,966.28 × 405,907,585.73 - Step 4: Simplify right side
1,036,253,714.97x = 631,218,754,729,804,672 - Step 5: Solve for x
x = 631,218,754,729,804,672/1,036,253,714.97 - Step 6: Final answer
x = 609,135,335.88
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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.