Finding the Fourth Proportional to 2,979,053,866.36, 4,110,942,396.90 and 1,640,915,149.96
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Solution
The fourth proportional to 2,979,053,866.36, 4,110,942,396.90 and 1,640,915,149.96 is: 2,264,379,216.46
Step by Step Solution
- Step 1: Write the proportion equation
2,979,053,866.36 : 4,110,942,396.90 = 1,640,915,149.96 : x - Step 2: Convert to fraction form
2,979,053,866.36/4,110,942,396.90 = 1,640,915,149.96/x - Step 3: Cross multiply
2,979,053,866.36x = 4,110,942,396.90 × 1,640,915,149.96 - Step 4: Simplify right side
2,979,053,866.36x = 6,745,707,659,686,085,632 - Step 5: Solve for x
x = 6,745,707,659,686,085,632/2,979,053,866.36 - Step 6: Final answer
x = 2,264,379,216.46
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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.