Finding the Fourth Proportional to 1,890,193,843.09, 2,608,467,976.25 and 1,043,421,657.49
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Solution
The fourth proportional to 1,890,193,843.09, 2,608,467,976.25 and 1,043,421,657.49 is: 1,439,922,148.32
Step by Step Solution
- Step 1: Write the proportion equation
1,890,193,843.09 : 2,608,467,976.25 = 1,043,421,657.49 : x - Step 2: Convert to fraction form
1,890,193,843.09/2,608,467,976.25 = 1,043,421,657.49/x - Step 3: Cross multiply
1,890,193,843.09x = 2,608,467,976.25 × 1,043,421,657.49 - Step 4: Simplify right side
1,890,193,843.09x = 2,721,731,979,288,360,960 - Step 5: Solve for x
x = 2,721,731,979,288,360,960/1,890,193,843.09 - Step 6: Final answer
x = 1,439,922,148.32
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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.