Finding the Fourth Proportional to 1,596,840,578.24, 2,203,639,868.78 and 891,992,550.76
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Solution
The fourth proportional to 1,596,840,578.24, 2,203,639,868.78 and 891,992,550.76 is: 1,230,949,647.88
Step by Step Solution
- Step 1: Write the proportion equation
1,596,840,578.24 : 2,203,639,868.78 = 891,992,550.76 : x - Step 2: Convert to fraction form
1,596,840,578.24/2,203,639,868.78 = 891,992,550.76/x - Step 3: Cross multiply
1,596,840,578.24x = 2,203,639,868.78 × 891,992,550.76 - Step 4: Simplify right side
1,596,840,578.24x = 1,965,630,347,509,504,000 - Step 5: Solve for x
x = 1,965,630,347,509,504,000/1,596,840,578.24 - Step 6: Final answer
x = 1,230,949,647.88
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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.