Finding the Fourth Proportional to 21,229,822.80, 31,825,880.24 and 8,272,972.08
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Solution
The fourth proportional to 21,229,822.80, 31,825,880.24 and 8,272,972.08 is: 12,402,110.99
Step by Step Solution
- Step 1: Write the proportion equation
21,229,822.80 : 31,825,880.24 = 8,272,972.08 : x - Step 2: Convert to fraction form
21,229,822.80/31,825,880.24 = 8,272,972.08/x - Step 3: Cross multiply
21,229,822.80x = 31,825,880.24 × 8,272,972.08 - Step 4: Simplify right side
21,229,822.80x = 263,294,618,646,943.69 - Step 5: Solve for x
x = 263,294,618,646,943.69/21,229,822.80 - Step 6: Final answer
x = 12,402,110.99
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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.