Finding the Fourth Proportional to 27,137,980.81, 40,673,621.21 and 12,545,161.07
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Solution
The fourth proportional to 27,137,980.81, 40,673,621.21 and 12,545,161.07 is: 18,802,324.80
Step by Step Solution
- Step 1: Write the proportion equation
27,137,980.81 : 40,673,621.21 = 12,545,161.07 : x - Step 2: Convert to fraction form
27,137,980.81/40,673,621.21 = 12,545,161.07/x - Step 3: Cross multiply
27,137,980.81x = 40,673,621.21 × 12,545,161.07 - Step 4: Simplify right side
27,137,980.81x = 510,257,129,379,618.31 - Step 5: Solve for x
x = 510,257,129,379,618.31/27,137,980.81 - Step 6: Final answer
x = 18,802,324.80
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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.