Finding the Fourth Proportional to 121,107,340.80, 181,661,011.20 and 121,107,340.80
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Solution
The fourth proportional to 121,107,340.80, 181,661,011.20 and 121,107,340.80 is: 181,661,011.20
Step by Step Solution
- Step 1: Write the proportion equation
121,107,340.80 : 181,661,011.20 = 121,107,340.80 : x - Step 2: Convert to fraction form
121,107,340.80/181,661,011.20 = 121,107,340.80/x - Step 3: Cross multiply
121,107,340.80x = 181,661,011.20 × 121,107,340.80 - Step 4: Simplify right side
121,107,340.80x = 22,000,481,993,471,016 - Step 5: Solve for x
x = 22,000,481,993,471,016/121,107,340.80 - Step 6: Final answer
x = 181,661,011.20
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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.