Finding the Fourth Proportional to 15,660,843.75, 21,614,563.62 and 9,134,473.21
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Solution
The fourth proportional to 15,660,843.75, 21,614,563.62 and 9,134,473.21 is: 12,607,089.09
Step by Step Solution
- Step 1: Write the proportion equation
15,660,843.75 : 21,614,563.62 = 9,134,473.21 : x - Step 2: Convert to fraction form
15,660,843.75/21,614,563.62 = 9,134,473.21/x - Step 3: Cross multiply
15,660,843.75x = 21,614,563.62 × 9,134,473.21 - Step 4: Simplify right side
15,660,843.75x = 197,437,652,332,730.66 - Step 5: Solve for x
x = 197,437,652,332,730.66/15,660,843.75 - Step 6: Final answer
x = 12,607,089.09
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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.