Finding the Fourth Proportional to 61,644,611.05, 85,037,310.44 and 38,115,626.66
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Solution
The fourth proportional to 61,644,611.05, 85,037,310.44 and 38,115,626.66 is: 52,579,622.48
Step by Step Solution
- Step 1: Write the proportion equation
61,644,611.05 : 85,037,310.44 = 38,115,626.66 : x - Step 2: Convert to fraction form
61,644,611.05/85,037,310.44 = 38,115,626.66/x - Step 3: Cross multiply
61,644,611.05x = 85,037,310.44 × 38,115,626.66 - Step 4: Simplify right side
61,644,611.05x = 3,241,250,376,747,619 - Step 5: Solve for x
x = 3,241,250,376,747,619/61,644,611.05 - Step 6: Final answer
x = 52,579,622.48
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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.