Finding the Fourth Proportional to 18,610,207.65, 27,915,321.20 and 5,831,712.45
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Solution
The fourth proportional to 18,610,207.65, 27,915,321.20 and 5,831,712.45 is: 8,747,571.72
Step by Step Solution
- Step 1: Write the proportion equation
18,610,207.65 : 27,915,321.20 = 5,831,712.45 : x - Step 2: Convert to fraction form
18,610,207.65/27,915,321.20 = 5,831,712.45/x - Step 3: Cross multiply
18,610,207.65x = 27,915,321.20 × 5,831,712.45 - Step 4: Simplify right side
18,610,207.65x = 162,794,126,158,630.38 - Step 5: Solve for x
x = 162,794,126,158,630.38/18,610,207.65 - Step 6: Final answer
x = 8,747,571.72
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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.