Finding the Fourth Proportional to 21,677,807.76, 29,923,790.76 and 16,261,057.68
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Solution
The fourth proportional to 21,677,807.76, 29,923,790.76 and 16,261,057.68 is: 22,446,572.69
Step by Step Solution
- Step 1: Write the proportion equation
21,677,807.76 : 29,923,790.76 = 16,261,057.68 : x - Step 2: Convert to fraction form
21,677,807.76/29,923,790.76 = 16,261,057.68/x - Step 3: Cross multiply
21,677,807.76x = 29,923,790.76 × 16,261,057.68 - Step 4: Simplify right side
21,677,807.76x = 486,592,487,552,611.06 - Step 5: Solve for x
x = 486,592,487,552,611.06/21,677,807.76 - Step 6: Final answer
x = 22,446,572.69
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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.