Finding the Fourth Proportional to 12,812,939.80, 19,222,232.99 and 3,715,417.21
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Solution
The fourth proportional to 12,812,939.80, 19,222,232.99 and 3,715,417.21 is: 5,573,944.50
Step by Step Solution
- Step 1: Write the proportion equation
12,812,939.80 : 19,222,232.99 = 3,715,417.21 : x - Step 2: Convert to fraction form
12,812,939.80/19,222,232.99 = 3,715,417.21/x - Step 3: Cross multiply
12,812,939.80x = 19,222,232.99 × 3,715,417.21 - Step 4: Simplify right side
12,812,939.80x = 71,418,615,330,775.81 - Step 5: Solve for x
x = 71,418,615,330,775.81/12,812,939.80 - Step 6: Final answer
x = 5,573,944.50
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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.