Finding the Fourth Proportional to 99,664,983.40, 149,336,511.90 and 56,405,540.20
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Solution
The fourth proportional to 99,664,983.40, 149,336,511.90 and 56,405,540.20 is: 84,517,212.95
Step by Step Solution
- Step 1: Write the proportion equation
99,664,983.40 : 149,336,511.90 = 56,405,540.20 : x - Step 2: Convert to fraction form
99,664,983.40/149,336,511.90 = 56,405,540.20/x - Step 3: Cross multiply
99,664,983.40x = 149,336,511.90 × 56,405,540.20 - Step 4: Simplify right side
99,664,983.40x = 8,423,406,625,303,229 - Step 5: Solve for x
x = 8,423,406,625,303,229/99,664,983.40 - Step 6: Final answer
x = 84,517,212.95
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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.