Finding the Fourth Proportional to 21,504,922.80, 32,257,384.20 and 19,315,201.20
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Solution
The fourth proportional to 21,504,922.80, 32,257,384.20 and 19,315,201.20 is: 28,972,801.80
Step by Step Solution
- Step 1: Write the proportion equation
21,504,922.80 : 32,257,384.20 = 19,315,201.20 : x - Step 2: Convert to fraction form
21,504,922.80/32,257,384.20 = 19,315,201.20/x - Step 3: Cross multiply
21,504,922.80x = 32,257,384.20 × 19,315,201.20 - Step 4: Simplify right side
21,504,922.80x = 623,057,866,008,701 - Step 5: Solve for x
x = 623,057,866,008,701/21,504,922.80 - Step 6: Final answer
x = 28,972,801.80
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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.