Finding the Fourth Proportional to 136,843,459.97, 188,842,471.40 and 74,117,997.54
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Solution
The fourth proportional to 136,843,459.97, 188,842,471.40 and 74,117,997.54 is: 102,282,022.35
Step by Step Solution
- Step 1: Write the proportion equation
136,843,459.97 : 188,842,471.40 = 74,117,997.54 : x - Step 2: Convert to fraction form
136,843,459.97/188,842,471.40 = 74,117,997.54/x - Step 3: Cross multiply
136,843,459.97x = 188,842,471.40 × 74,117,997.54 - Step 4: Simplify right side
136,843,459.97x = 13,996,625,830,858,016 - Step 5: Solve for x
x = 13,996,625,830,858,016/136,843,459.97 - Step 6: Final answer
x = 102,282,022.35
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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.