Finding the Fourth Proportional to 1,163,614,635.12, 1,605,822,107.76 and 635,012,669.16
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Solution
The fourth proportional to 1,163,614,635.12, 1,605,822,107.76 and 635,012,669.16 is: 876,335,989.65
Step by Step Solution
- Step 1: Write the proportion equation
1,163,614,635.12 : 1,605,822,107.76 = 635,012,669.16 : x - Step 2: Convert to fraction form
1,163,614,635.12/1,605,822,107.76 = 635,012,669.16/x - Step 3: Cross multiply
1,163,614,635.12x = 1,605,822,107.76 × 635,012,669.16 - Step 4: Simplify right side
1,163,614,635.12x = 1,019,717,382,844,814,720 - Step 5: Solve for x
x = 1,019,717,382,844,814,720/1,163,614,635.12 - Step 6: Final answer
x = 876,335,989.65
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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.