Finding the Fourth Proportional to 1,448,533,862.40, 2,172,800,793.60 and 528,440,217.60
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Solution
The fourth proportional to 1,448,533,862.40, 2,172,800,793.60 and 528,440,217.60 is: 792,660,326.40
Step by Step Solution
- Step 1: Write the proportion equation
1,448,533,862.40 : 2,172,800,793.60 = 528,440,217.60 : x - Step 2: Convert to fraction form
1,448,533,862.40/2,172,800,793.60 = 528,440,217.60/x - Step 3: Cross multiply
1,448,533,862.40x = 2,172,800,793.60 × 528,440,217.60 - Step 4: Simplify right side
1,448,533,862.40x = 1,148,195,324,171,436,672 - Step 5: Solve for x
x = 1,148,195,324,171,436,672/1,448,533,862.40 - Step 6: Final answer
x = 792,660,326.40
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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.