Finding the Fourth Proportional to 1,163,715,271.36, 1,605,961,120.80 and 635,113,161.28
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Solution
The fourth proportional to 1,163,715,271.36, 1,605,961,120.80 and 635,113,161.28 is: 876,474,743.80
Step by Step Solution
- Step 1: Write the proportion equation
1,163,715,271.36 : 1,605,961,120.80 = 635,113,161.28 : x - Step 2: Convert to fraction form
1,163,715,271.36/1,605,961,120.80 = 635,113,161.28/x - Step 3: Cross multiply
1,163,715,271.36x = 1,605,961,120.80 × 635,113,161.28 - Step 4: Simplify right side
1,163,715,271.36x = 1,019,967,044,324,059,904 - Step 5: Solve for x
x = 1,019,967,044,324,059,904/1,163,715,271.36 - Step 6: Final answer
x = 876,474,743.80
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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.