Finding the Fourth Proportional to 1,917,694,915.20, 2,876,542,372.80 and 1,297,822,132.80
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Solution
The fourth proportional to 1,917,694,915.20, 2,876,542,372.80 and 1,297,822,132.80 is: 1,946,733,199.20
Step by Step Solution
- Step 1: Write the proportion equation
1,917,694,915.20 : 2,876,542,372.80 = 1,297,822,132.80 : x - Step 2: Convert to fraction form
1,917,694,915.20/2,876,542,372.80 = 1,297,822,132.80/x - Step 3: Cross multiply
1,917,694,915.20x = 2,876,542,372.80 × 1,297,822,132.80 - Step 4: Simplify right side
1,917,694,915.20x = 3,733,240,357,356,868,608 - Step 5: Solve for x
x = 3,733,240,357,356,868,608/1,917,694,915.20 - Step 6: Final answer
x = 1,946,733,199.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.