Finding the Fourth Proportional to 12,882,415.73, 17,777,628.92 and 7,081,135.79
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Solution
The fourth proportional to 12,882,415.73, 17,777,628.92 and 7,081,135.79 is: 9,771,909.79
Step by Step Solution
- Step 1: Write the proportion equation
12,882,415.73 : 17,777,628.92 = 7,081,135.79 : x - Step 2: Convert to fraction form
12,882,415.73/17,777,628.92 = 7,081,135.79/x - Step 3: Cross multiply
12,882,415.73x = 17,777,628.92 × 7,081,135.79 - Step 4: Simplify right side
12,882,415.73x = 125,885,804,371,345.36 - Step 5: Solve for x
x = 125,885,804,371,345.36/12,882,415.73 - Step 6: Final answer
x = 9,771,909.79
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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.