Finding the Fourth Proportional to 5,438,609.70, 8,157,914.55 and 2,604,257.70
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Solution
The fourth proportional to 5,438,609.70, 8,157,914.55 and 2,604,257.70 is: 3,906,386.55
Step by Step Solution
- Step 1: Write the proportion equation
5,438,609.70 : 8,157,914.55 = 2,604,257.70 : x - Step 2: Convert to fraction form
5,438,609.70/8,157,914.55 = 2,604,257.70/x - Step 3: Cross multiply
5,438,609.70x = 8,157,914.55 × 2,604,257.70 - Step 4: Simplify right side
5,438,609.70x = 21,245,311,782,779.54 - Step 5: Solve for x
x = 21,245,311,782,779.54/5,438,609.70 - Step 6: Final answer
x = 3,906,386.55
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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.