Finding the Fourth Proportional to 225,247,860.12, 310,842,046.86 and 122,231,412.12
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Solution
The fourth proportional to 225,247,860.12, 310,842,046.86 and 122,231,412.12 is: 168,679,348.67
Step by Step Solution
- Step 1: Write the proportion equation
225,247,860.12 : 310,842,046.86 = 122,231,412.12 : x - Step 2: Convert to fraction form
225,247,860.12/310,842,046.86 = 122,231,412.12/x - Step 3: Cross multiply
225,247,860.12x = 310,842,046.86 × 122,231,412.12 - Step 4: Simplify right side
225,247,860.12x = 37,994,662,333,969,016 - Step 5: Solve for x
x = 37,994,662,333,969,016/225,247,860.12 - Step 6: Final answer
x = 168,679,348.67
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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.