Finding the Fourth Proportional to 5,211,940,619.81, 7,192,482,689.94 and 2,833,078,557.17
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Solution
The fourth proportional to 5,211,940,619.81, 7,192,482,689.94 and 2,833,078,557.17 is: 3,909,650,928.14
Step by Step Solution
- Step 1: Write the proportion equation
5,211,940,619.81 : 7,192,482,689.94 = 2,833,078,557.17 : x - Step 2: Convert to fraction form
5,211,940,619.81/7,192,482,689.94 = 2,833,078,557.17/x - Step 3: Cross multiply
5,211,940,619.81x = 7,192,482,689.94 × 2,833,078,557.17 - Step 4: Simplify right side
5,211,940,619.81x = 20,376,868,481,649,451,008 - Step 5: Solve for x
x = 20,376,868,481,649,451,008/5,211,940,619.81 - Step 6: Final answer
x = 3,909,650,928.14
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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.