Finding the Fourth Proportional to 2,198,829,774.80, 3,298,244,662.20 and 1,326,416,229.20
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Solution
The fourth proportional to 2,198,829,774.80, 3,298,244,662.20 and 1,326,416,229.20 is: 1,989,624,343.80
Step by Step Solution
- Step 1: Write the proportion equation
2,198,829,774.80 : 3,298,244,662.20 = 1,326,416,229.20 : x - Step 2: Convert to fraction form
2,198,829,774.80/3,298,244,662.20 = 1,326,416,229.20/x - Step 3: Cross multiply
2,198,829,774.80x = 3,298,244,662.20 × 1,326,416,229.20 - Step 4: Simplify right side
2,198,829,774.80x = 4,374,845,247,814,351,872 - Step 5: Solve for x
x = 4,374,845,247,814,351,872/2,198,829,774.80 - Step 6: Final answer
x = 1,989,624,343.80
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1.5x scale
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.