Finding the Fourth Proportional to 99,246,372.16, 136,960,071.66 and 55,192,409.68
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Solution
The fourth proportional to 99,246,372.16, 136,960,071.66 and 55,192,409.68 is: 76,165,568.78
Step by Step Solution
- Step 1: Write the proportion equation
99,246,372.16 : 136,960,071.66 = 55,192,409.68 : x - Step 2: Convert to fraction form
99,246,372.16/136,960,071.66 = 55,192,409.68/x - Step 3: Cross multiply
99,246,372.16x = 136,960,071.66 × 55,192,409.68 - Step 4: Simplify right side
99,246,372.16x = 7,559,156,384,860,877 - Step 5: Solve for x
x = 7,559,156,384,860,877/99,246,372.16 - Step 6: Final answer
x = 76,165,568.78
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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.