Finding the Fourth Proportional to 21,448,841.80, 29,599,193.14 and 15,966,732.36
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Solution
The fourth proportional to 21,448,841.80, 29,599,193.14 and 15,966,732.36 is: 22,033,935.41
Step by Step Solution
- Step 1: Write the proportion equation
21,448,841.80 : 29,599,193.14 = 15,966,732.36 : x - Step 2: Convert to fraction form
21,448,841.80/29,599,193.14 = 15,966,732.36/x - Step 3: Cross multiply
21,448,841.80x = 29,599,193.14 × 15,966,732.36 - Step 4: Simplify right side
21,448,841.80x = 472,602,394,938,328 - Step 5: Solve for x
x = 472,602,394,938,328/21,448,841.80 - Step 6: Final answer
x = 22,033,935.41
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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.