Finding the Fourth Proportional to 1,207,232,479.40, 1,810,848,719.10 and 656,234,450.60
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Solution
The fourth proportional to 1,207,232,479.40, 1,810,848,719.10 and 656,234,450.60 is: 984,351,675.90
Step by Step Solution
- Step 1: Write the proportion equation
1,207,232,479.40 : 1,810,848,719.10 = 656,234,450.60 : x - Step 2: Convert to fraction form
1,207,232,479.40/1,810,848,719.10 = 656,234,450.60/x - Step 3: Cross multiply
1,207,232,479.40x = 1,810,848,719.10 × 656,234,450.60 - Step 4: Simplify right side
1,207,232,479.40x = 1,188,341,314,298,302,208 - Step 5: Solve for x
x = 1,188,341,314,298,302,208/1,207,232,479.40 - Step 6: Final answer
x = 984,351,675.90
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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.