Finding the Fourth Proportional to 979,808,562.40, 1,466,311,621.20 and 898,179,224.80
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Solution
The fourth proportional to 979,808,562.40, 1,466,311,621.20 and 898,179,224.80 is: 1,344,150,975.80
Step by Step Solution
- Step 1: Write the proportion equation
979,808,562.40 : 1,466,311,621.20 = 898,179,224.80 : x - Step 2: Convert to fraction form
979,808,562.40/1,466,311,621.20 = 898,179,224.80/x - Step 3: Cross multiply
979,808,562.40x = 1,466,311,621.20 × 898,179,224.80 - Step 4: Simplify right side
979,808,562.40x = 1,317,010,635,244,647,168 - Step 5: Solve for x
x = 1,317,010,635,244,647,168/979,808,562.40 - Step 6: Final answer
x = 1,344,150,975.80
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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.