Finding the Fourth Proportional to 18,189,969.70, 27,284,954.55 and 8,624,031.70
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Solution
The fourth proportional to 18,189,969.70, 27,284,954.55 and 8,624,031.70 is: 12,936,047.55
Step by Step Solution
- Step 1: Write the proportion equation
18,189,969.70 : 27,284,954.55 = 8,624,031.70 : x - Step 2: Convert to fraction form
18,189,969.70/27,284,954.55 = 8,624,031.70/x - Step 3: Cross multiply
18,189,969.70x = 27,284,954.55 × 8,624,031.70 - Step 4: Simplify right side
18,189,969.70x = 235,306,312,972,259.22 - Step 5: Solve for x
x = 235,306,312,972,259.22/18,189,969.70 - Step 6: Final answer
x = 12,936,047.55
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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.