Finding the Fourth Proportional to 11,774,469.20, 17,619,713.40 and 8,163,294.80
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Solution
The fourth proportional to 11,774,469.20, 17,619,713.40 and 8,163,294.80 is: 12,215,830.06
Step by Step Solution
- Step 1: Write the proportion equation
11,774,469.20 : 17,619,713.40 = 8,163,294.80 : x - Step 2: Convert to fraction form
11,774,469.20/17,619,713.40 = 8,163,294.80/x - Step 3: Cross multiply
11,774,469.20x = 17,619,713.40 × 8,163,294.80 - Step 4: Simplify right side
11,774,469.20x = 143,834,914,775,710.31 - Step 5: Solve for x
x = 143,834,914,775,710.31/11,774,469.20 - Step 6: Final answer
x = 12,215,830.06
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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.