Finding the Fourth Proportional to 19,161,145.60, 28,747,226.40 and 11,079,911.68
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Solution
The fourth proportional to 19,161,145.60, 28,747,226.40 and 11,079,911.68 is: 16,623,052.52
Step by Step Solution
- Step 1: Write the proportion equation
19,161,145.60 : 28,747,226.40 = 11,079,911.68 : x - Step 2: Convert to fraction form
19,161,145.60/28,747,226.40 = 11,079,911.68/x - Step 3: Cross multiply
19,161,145.60x = 28,747,226.40 × 11,079,911.68 - Step 4: Simplify right side
19,161,145.60x = 318,516,729,556,964.31 - Step 5: Solve for x
x = 318,516,729,556,964.31/19,161,145.60 - Step 6: Final answer
x = 16,623,052.52
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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.