Finding the Fourth Proportional to 126,873,716.16, 175,082,326.92 and 74,665,827.12
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Solution
The fourth proportional to 126,873,716.16, 175,082,326.92 and 74,665,827.12 is: 103,036,839.70
Step by Step Solution
- Step 1: Write the proportion equation
126,873,716.16 : 175,082,326.92 = 74,665,827.12 : x - Step 2: Convert to fraction form
126,873,716.16/175,082,326.92 = 74,665,827.12/x - Step 3: Cross multiply
126,873,716.16x = 175,082,326.92 × 74,665,827.12 - Step 4: Simplify right side
126,873,716.16x = 13,072,666,753,576,042 - Step 5: Solve for x
x = 13,072,666,753,576,042/126,873,716.16 - Step 6: Final answer
x = 103,036,839.70
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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.