Finding the Fourth Proportional to 18,343,873.70, 27,508,812.15 and 5,560,129.70
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Solution
The fourth proportional to 18,343,873.70, 27,508,812.15 and 5,560,129.70 is: 8,338,073.30
Step by Step Solution
- Step 1: Write the proportion equation
18,343,873.70 : 27,508,812.15 = 5,560,129.70 : x - Step 2: Convert to fraction form
18,343,873.70/27,508,812.15 = 5,560,129.70/x - Step 3: Cross multiply
18,343,873.70x = 27,508,812.15 × 5,560,129.70 - Step 4: Simplify right side
18,343,873.70x = 152,952,563,446,935.84 - Step 5: Solve for x
x = 152,952,563,446,935.84/18,343,873.70 - Step 6: Final answer
x = 8,338,073.30
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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.