Finding the Fourth Proportional to 21,294,039.24, 29,351,349.20 and 16,639,737.14
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Solution
The fourth proportional to 21,294,039.24, 29,351,349.20 and 16,639,737.14 is: 22,935,936.67
Step by Step Solution
- Step 1: Write the proportion equation
21,294,039.24 : 29,351,349.20 = 16,639,737.14 : x - Step 2: Convert to fraction form
21,294,039.24/29,351,349.20 = 16,639,737.14/x - Step 3: Cross multiply
21,294,039.24x = 29,351,349.20 × 16,639,737.14 - Step 4: Simplify right side
21,294,039.24x = 488,398,735,507,327 - Step 5: Solve for x
x = 488,398,735,507,327/21,294,039.24 - Step 6: Final answer
x = 22,935,936.67
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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.