Finding the Fourth Proportional to 13,455,691.80, 20,183,537.70 and 11,064,207.30
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Solution
The fourth proportional to 13,455,691.80, 20,183,537.70 and 11,064,207.30 is: 16,596,310.95
Step by Step Solution
- Step 1: Write the proportion equation
13,455,691.80 : 20,183,537.70 = 11,064,207.30 : x - Step 2: Convert to fraction form
13,455,691.80/20,183,537.70 = 11,064,207.30/x - Step 3: Cross multiply
13,455,691.80x = 20,183,537.70 × 11,064,207.30 - Step 4: Simplify right side
13,455,691.80x = 223,314,845,160,165.22 - Step 5: Solve for x
x = 223,314,845,160,165.22/13,455,691.80 - Step 6: Final answer
x = 16,596,310.95
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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.