Finding the Fourth Proportional to 18,157,076.99, 25,056,012.27 and 9,896,957.49
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Solution
The fourth proportional to 18,157,076.99, 25,056,012.27 and 9,896,957.49 is: 13,657,390.37
Step by Step Solution
- Step 1: Write the proportion equation
18,157,076.99 : 25,056,012.27 = 9,896,957.49 : x - Step 2: Convert to fraction form
18,157,076.99/25,056,012.27 = 9,896,957.49/x - Step 3: Cross multiply
18,157,076.99x = 25,056,012.27 × 9,896,957.49 - Step 4: Simplify right side
18,157,076.99x = 247,978,288,305,108.41 - Step 5: Solve for x
x = 247,978,288,305,108.41/18,157,076.99 - Step 6: Final answer
x = 13,657,390.37
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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.