Finding the Fourth Proportional to 21,566,528.80, 32,349,793.20 and 19,575,872.80
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Solution
The fourth proportional to 21,566,528.80, 32,349,793.20 and 19,575,872.80 is: 29,363,809.20
Step by Step Solution
- Step 1: Write the proportion equation
21,566,528.80 : 32,349,793.20 = 19,575,872.80 : x - Step 2: Convert to fraction form
21,566,528.80/32,349,793.20 = 19,575,872.80/x - Step 3: Cross multiply
21,566,528.80x = 32,349,793.20 × 19,575,872.80 - Step 4: Simplify right side
21,566,528.80x = 633,275,436,789,505 - Step 5: Solve for x
x = 633,275,436,789,505/21,566,528.80 - Step 6: Final answer
x = 29,363,809.20
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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.