Finding the Fourth Proportional to 21,465,519.04, 29,639,043.28 and 16,496,088.96
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Solution
The fourth proportional to 21,465,519.04, 29,639,043.28 and 16,496,088.96 is: 22,777,380.49
Step by Step Solution
- Step 1: Write the proportion equation
21,465,519.04 : 29,639,043.28 = 16,496,088.96 : x - Step 2: Convert to fraction form
21,465,519.04/29,639,043.28 = 16,496,088.96/x - Step 3: Cross multiply
21,465,519.04x = 29,639,043.28 × 16,496,088.96 - Step 4: Simplify right side
21,465,519.04x = 488,928,294,636,170.25 - Step 5: Solve for x
x = 488,928,294,636,170.25/21,465,519.04 - Step 6: Final answer
x = 22,777,380.49
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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.