Finding the Fourth Proportional to 3,992,498,319.09, 5,509,277,935.54 and 2,208,313,371.63
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Solution
The fourth proportional to 3,992,498,319.09, 5,509,277,935.54 and 2,208,313,371.63 is: 3,047,267,941.21
Step by Step Solution
- Step 1: Write the proportion equation
3,992,498,319.09 : 5,509,277,935.54 = 2,208,313,371.63 : x - Step 2: Convert to fraction form
3,992,498,319.09/5,509,277,935.54 = 2,208,313,371.63/x - Step 3: Cross multiply
3,992,498,319.09x = 5,509,277,935.54 × 2,208,313,371.63 - Step 4: Simplify right side
3,992,498,319.09x = 12,166,212,133,079,103,488 - Step 5: Solve for x
x = 12,166,212,133,079,103,488/3,992,498,319.09 - Step 6: Final answer
x = 3,047,267,941.21
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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.