Finding the Fourth Proportional to 3,944,837,928.36, 5,442,361,728.66 and 2,251,386,666.12
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Solution
The fourth proportional to 3,944,837,928.36, 5,442,361,728.66 and 2,251,386,666.12 is: 3,106,049,183.93
Step by Step Solution
- Step 1: Write the proportion equation
3,944,837,928.36 : 5,442,361,728.66 = 2,251,386,666.12 : x - Step 2: Convert to fraction form
3,944,837,928.36/5,442,361,728.66 = 2,251,386,666.12/x - Step 3: Cross multiply
3,944,837,928.36x = 5,442,361,728.66 × 2,251,386,666.12 - Step 4: Simplify right side
3,944,837,928.36x = 12,252,860,628,106,915,840 - Step 5: Solve for x
x = 12,252,860,628,106,915,840/3,944,837,928.36 - Step 6: Final answer
x = 3,106,049,183.93
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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.