Finding the Fourth Proportional to 21,335,166.69, 29,442,529.08 and 11,545,611.18
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Solution
The fourth proportional to 21,335,166.69, 29,442,529.08 and 11,545,611.18 is: 15,932,942.91
Step by Step Solution
- Step 1: Write the proportion equation
21,335,166.69 : 29,442,529.08 = 11,545,611.18 : x - Step 2: Convert to fraction form
21,335,166.69/29,442,529.08 = 11,545,611.18/x - Step 3: Cross multiply
21,335,166.69x = 29,442,529.08 × 11,545,611.18 - Step 4: Simplify right side
21,335,166.69x = 339,931,992,913,523.06 - Step 5: Solve for x
x = 339,931,992,913,523.06/21,335,166.69 - Step 6: Final answer
x = 15,932,942.91
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.