Finding the Fourth Proportional to 19,474,797.72, 29,214,854.24 and 8,112,589.14
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Solution
The fourth proportional to 19,474,797.72, 29,214,854.24 and 8,112,589.14 is: 12,169,990.81
Step by Step Solution
- Step 1: Write the proportion equation
19,474,797.72 : 29,214,854.24 = 8,112,589.14 : x - Step 2: Convert to fraction form
19,474,797.72/29,214,854.24 = 8,112,589.14/x - Step 3: Cross multiply
19,474,797.72x = 29,214,854.24 × 8,112,589.14 - Step 4: Simplify right side
19,474,797.72x = 237,008,109,193,544 - Step 5: Solve for x
x = 237,008,109,193,544/19,474,797.72 - Step 6: Final answer
x = 12,169,990.81
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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.