Finding the Fourth Proportional to 221,243,114.48, 305,315,449.13 and 122,123,836.08
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Solution
The fourth proportional to 221,243,114.48, 305,315,449.13 and 122,123,836.08 is: 168,530,866.83
Step by Step Solution
- Step 1: Write the proportion equation
221,243,114.48 : 305,315,449.13 = 122,123,836.08 : x - Step 2: Convert to fraction form
221,243,114.48/305,315,449.13 = 122,123,836.08/x - Step 3: Cross multiply
221,243,114.48x = 305,315,449.13 × 122,123,836.08 - Step 4: Simplify right side
221,243,114.48x = 37,286,293,862,549,008 - Step 5: Solve for x
x = 37,286,293,862,549,008/221,243,114.48 - Step 6: Final answer
x = 168,530,866.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.