Finding the Fourth Proportional to 12,948,112.21, 17,868,118.84 and 7,067,551.09
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Solution
The fourth proportional to 12,948,112.21, 17,868,118.84 and 7,067,551.09 is: 9,753,069.85
Step by Step Solution
- Step 1: Write the proportion equation
12,948,112.21 : 17,868,118.84 = 7,067,551.09 : x - Step 2: Convert to fraction form
12,948,112.21/17,868,118.84 = 7,067,551.09/x - Step 3: Cross multiply
12,948,112.21x = 17,868,118.84 × 7,067,551.09 - Step 4: Simplify right side
12,948,112.21x = 126,283,842,783,891.53 - Step 5: Solve for x
x = 126,283,842,783,891.53/12,948,112.21 - Step 6: Final answer
x = 9,753,069.85
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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.