Finding the Fourth Proportional to 3,992,498,331.66, 5,509,277,952.80 and 2,208,313,384.20
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Solution
The fourth proportional to 3,992,498,331.66, 5,509,277,952.80 and 2,208,313,384.20 is: 3,047,267,958.50
Step by Step Solution
- Step 1: Write the proportion equation
3,992,498,331.66 : 5,509,277,952.80 = 2,208,313,384.20 : x - Step 2: Convert to fraction form
3,992,498,331.66/5,509,277,952.80 = 2,208,313,384.20/x - Step 3: Cross multiply
3,992,498,331.66x = 5,509,277,952.80 × 2,208,313,384.20 - Step 4: Simplify right side
3,992,498,331.66x = 12,166,212,240,435,173,376 - Step 5: Solve for x
x = 12,166,212,240,435,173,376/3,992,498,331.66 - Step 6: Final answer
x = 3,047,267,958.50
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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.