Finding the Fourth Proportional to 20,708,429.30, 31,062,643.94 and 6,331,497.11
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Solution
The fourth proportional to 20,708,429.30, 31,062,643.94 and 6,331,497.11 is: 9,497,245.66
Step by Step Solution
- Step 1: Write the proportion equation
20,708,429.30 : 31,062,643.94 = 6,331,497.11 : x - Step 2: Convert to fraction form
20,708,429.30/31,062,643.94 = 6,331,497.11/x - Step 3: Cross multiply
20,708,429.30x = 31,062,643.94 × 6,331,497.11 - Step 4: Simplify right side
20,708,429.30x = 196,673,040,335,069.03 - Step 5: Solve for x
x = 196,673,040,335,069.03/20,708,429.30 - Step 6: Final answer
x = 9,497,245.66
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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.