Finding the Fourth Proportional to 1,297,163,797.44, 1,790,087,010.44 and 702,448,933.76
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Solution
The fourth proportional to 1,297,163,797.44, 1,790,087,010.44 and 702,448,933.76 is: 969,380,053.86
Step by Step Solution
- Step 1: Write the proportion equation
1,297,163,797.44 : 1,790,087,010.44 = 702,448,933.76 : x - Step 2: Convert to fraction form
1,297,163,797.44/1,790,087,010.44 = 702,448,933.76/x - Step 3: Cross multiply
1,297,163,797.44x = 1,790,087,010.44 × 702,448,933.76 - Step 4: Simplify right side
1,297,163,797.44x = 1,257,444,711,821,203,968 - Step 5: Solve for x
x = 1,257,444,711,821,203,968/1,297,163,797.44 - Step 6: Final answer
x = 969,380,053.86
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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.