Finding the Fourth Proportional to 12,143,328.37, 18,296,921.99 and 10,031,659.99
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Solution
The fourth proportional to 12,143,328.37, 18,296,921.99 and 10,031,659.99 is: 15,115,172.27
Step by Step Solution
- Step 1: Write the proportion equation
12,143,328.37 : 18,296,921.99 = 10,031,659.99 : x - Step 2: Convert to fraction form
12,143,328.37/18,296,921.99 = 10,031,659.99/x - Step 3: Cross multiply
12,143,328.37x = 18,296,921.99 × 10,031,659.99 - Step 4: Simplify right side
12,143,328.37x = 183,548,500,267,234.16 - Step 5: Solve for x
x = 183,548,500,267,234.16/12,143,328.37 - Step 6: Final answer
x = 15,115,172.27
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.