Finding the Fourth Proportional to 11,912,894.98, 16,440,122.31 and 6,686,228.11
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Solution
The fourth proportional to 11,912,894.98, 16,440,122.31 and 6,686,228.11 is: 9,227,178.46
Step by Step Solution
- Step 1: Write the proportion equation
11,912,894.98 : 16,440,122.31 = 6,686,228.11 : x - Step 2: Convert to fraction form
11,912,894.98/16,440,122.31 = 6,686,228.11/x - Step 3: Cross multiply
11,912,894.98x = 16,440,122.31 × 6,686,228.11 - Step 4: Simplify right side
11,912,894.98x = 109,922,407,920,960.14 - Step 5: Solve for x
x = 109,922,407,920,960.14/11,912,894.98 - Step 6: Final answer
x = 9,227,178.46
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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.