Finding the Fourth Proportional to 3,120,192,919.68, 4,306,138,634.82 and 1,710,769,287.90
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Solution
The fourth proportional to 3,120,192,919.68, 4,306,138,634.82 and 1,710,769,287.90 is: 2,361,010,974.49
Step by Step Solution
- Step 1: Write the proportion equation
3,120,192,919.68 : 4,306,138,634.82 = 1,710,769,287.90 : x - Step 2: Convert to fraction form
3,120,192,919.68/4,306,138,634.82 = 1,710,769,287.90/x - Step 3: Cross multiply
3,120,192,919.68x = 4,306,138,634.82 × 1,710,769,287.90 - Step 4: Simplify right side
3,120,192,919.68x = 7,366,809,725,889,689,600 - Step 5: Solve for x
x = 7,366,809,725,889,689,600/3,120,192,919.68 - Step 6: Final answer
x = 2,361,010,974.49
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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.