Finding the Fourth Proportional to 12,193,768.62, 16,832,134.72 and 9,146,846.70
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Solution
The fourth proportional to 12,193,768.62, 16,832,134.72 and 9,146,846.70 is: 12,626,199.55
Step by Step Solution
- Step 1: Write the proportion equation
12,193,768.62 : 16,832,134.72 = 9,146,846.70 : x - Step 2: Convert to fraction form
12,193,768.62/16,832,134.72 = 9,146,846.70/x - Step 3: Cross multiply
12,193,768.62x = 16,832,134.72 × 9,146,846.70 - Step 4: Simplify right side
12,193,768.62x = 153,960,955,917,587.41 - Step 5: Solve for x
x = 153,960,955,917,587.41/12,193,768.62 - Step 6: Final answer
x = 12,626,199.55
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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.