Finding the Fourth Proportional to 21,439,121.05, 29,586,174.48 and 11,649,565.20
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Solution
The fourth proportional to 21,439,121.05, 29,586,174.48 and 11,649,565.20 is: 16,076,501.82
Step by Step Solution
- Step 1: Write the proportion equation
21,439,121.05 : 29,586,174.48 = 11,649,565.20 : x - Step 2: Convert to fraction form
21,439,121.05/29,586,174.48 = 11,649,565.20/x - Step 3: Cross multiply
21,439,121.05x = 29,586,174.48 × 11,649,565.20 - Step 4: Simplify right side
21,439,121.05x = 344,666,068,623,336.06 - Step 5: Solve for x
x = 344,666,068,623,336.06/21,439,121.05 - Step 6: Final answer
x = 16,076,501.82
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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.