Finding the Fourth Proportional to 3,511,246,871.20, 4,840,833,208.36 and 2,789,429,787.12
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Solution
The fourth proportional to 3,511,246,871.20, 4,840,833,208.36 and 2,789,429,787.12 is: 3,845,689,249.77
Step by Step Solution
- Step 1: Write the proportion equation
3,511,246,871.20 : 4,840,833,208.36 = 2,789,429,787.12 : x - Step 2: Convert to fraction form
3,511,246,871.20/4,840,833,208.36 = 2,789,429,787.12/x - Step 3: Cross multiply
3,511,246,871.20x = 4,840,833,208.36 × 2,789,429,787.12 - Step 4: Simplify right side
3,511,246,871.20x = 13,503,164,345,879,060,480 - Step 5: Solve for x
x = 13,503,164,345,879,060,480/3,511,246,871.20 - Step 6: Final answer
x = 3,845,689,249.77
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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.