Finding the Fourth Proportional to 81,612,016.93, 122,395,301.10 and 27,028,858.63
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Solution
The fourth proportional to 81,612,016.93, 122,395,301.10 and 27,028,858.63 is: 40,535,761.95
Step by Step Solution
- Step 1: Write the proportion equation
81,612,016.93 : 122,395,301.10 = 27,028,858.63 : x - Step 2: Convert to fraction form
81,612,016.93/122,395,301.10 = 27,028,858.63/x - Step 3: Cross multiply
81,612,016.93x = 122,395,301.10 × 27,028,858.63 - Step 4: Simplify right side
81,612,016.93x = 3,308,205,290,331,686 - Step 5: Solve for x
x = 3,308,205,290,331,686/81,612,016.93 - Step 6: Final answer
x = 40,535,761.95
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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.