Finding the Fourth Proportional to 979,869,674.80, 1,469,804,512.20 and 738,004,970.80
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Solution
The fourth proportional to 979,869,674.80, 1,469,804,512.20 and 738,004,970.80 is: 1,107,007,456.20
Step by Step Solution
- Step 1: Write the proportion equation
979,869,674.80 : 1,469,804,512.20 = 738,004,970.80 : x - Step 2: Convert to fraction form
979,869,674.80/1,469,804,512.20 = 738,004,970.80/x - Step 3: Cross multiply
979,869,674.80x = 1,469,804,512.20 × 738,004,970.80 - Step 4: Simplify right side
979,869,674.80x = 1,084,723,036,107,869,184 - Step 5: Solve for x
x = 1,084,723,036,107,869,184/979,869,674.80 - Step 6: Final answer
x = 1,107,007,456.20
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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.