Finding the Fourth Proportional to 11,453,421.12, 17,142,747.84 and 8,419,983.36
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Solution
The fourth proportional to 11,453,421.12, 17,142,747.84 and 8,419,983.36 is: 12,602,492.31
Step by Step Solution
- Step 1: Write the proportion equation
11,453,421.12 : 17,142,747.84 = 8,419,983.36 : x - Step 2: Convert to fraction form
11,453,421.12/17,142,747.84 = 8,419,983.36/x - Step 3: Cross multiply
11,453,421.12x = 17,142,747.84 × 8,419,983.36 - Step 4: Simplify right side
11,453,421.12x = 144,341,651,557,475.94 - Step 5: Solve for x
x = 144,341,651,557,475.94/11,453,421.12 - Step 6: Final answer
x = 12,602,492.31
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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.