Finding the Fourth Proportional to 91,738,606.70, 137,607,910.05 and 87,487,078.70
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Solution
The fourth proportional to 91,738,606.70, 137,607,910.05 and 87,487,078.70 is: 131,230,618.05
Step by Step Solution
- Step 1: Write the proportion equation
91,738,606.70 : 137,607,910.05 = 87,487,078.70 : x - Step 2: Convert to fraction form
91,738,606.70/137,607,910.05 = 87,487,078.70/x - Step 3: Cross multiply
91,738,606.70x = 137,607,910.05 × 87,487,078.70 - Step 4: Simplify right side
91,738,606.70x = 12,038,914,056,286,872 - Step 5: Solve for x
x = 12,038,914,056,286,872/91,738,606.70 - Step 6: Final answer
x = 131,230,618.05
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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.