Finding the Fourth Proportional to 3,211,605,883.86, 4,817,302,821.74 and 1,320,736,618.86
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Solution
The fourth proportional to 3,211,605,883.86, 4,817,302,821.74 and 1,320,736,618.86 is: 1,981,061,335.32
Step by Step Solution
- Step 1: Write the proportion equation
3,211,605,883.86 : 4,817,302,821.74 = 1,320,736,618.86 : x - Step 2: Convert to fraction form
3,211,605,883.86/4,817,302,821.74 = 1,320,736,618.86/x - Step 3: Cross multiply
3,211,605,883.86x = 4,817,302,821.74 × 1,320,736,618.86 - Step 4: Simplify right side
3,211,605,883.86x = 6,362,388,240,794,754,048 - Step 5: Solve for x
x = 6,362,388,240,794,754,048/3,211,605,883.86 - Step 6: Final answer
x = 1,981,061,335.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.