Finding the Fourth Proportional to 121,119,169.80, 181,678,754.70 and 121,119,169.80
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Solution
The fourth proportional to 121,119,169.80, 181,678,754.70 and 121,119,169.80 is: 181,678,754.70
Step by Step Solution
- Step 1: Write the proportion equation
121,119,169.80 : 181,678,754.70 = 121,119,169.80 : x - Step 2: Convert to fraction form
121,119,169.80/181,678,754.70 = 121,119,169.80/x - Step 3: Cross multiply
121,119,169.80x = 181,678,754.70 × 121,119,169.80 - Step 4: Simplify right side
121,119,169.80x = 22,004,779,939,561,848 - Step 5: Solve for x
x = 22,004,779,939,561,848/121,119,169.80 - Step 6: Final answer
x = 181,678,754.70
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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.