Finding the Fourth Proportional to 18,157,103.42, 25,056,048.62 and 9,896,983.97
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Solution
The fourth proportional to 18,157,103.42, 25,056,048.62 and 9,896,983.97 is: 13,657,426.84
Step by Step Solution
- Step 1: Write the proportion equation
18,157,103.42 : 25,056,048.62 = 9,896,983.97 : x - Step 2: Convert to fraction form
18,157,103.42/25,056,048.62 = 9,896,983.97/x - Step 3: Cross multiply
18,157,103.42x = 25,056,048.62 × 9,896,983.97 - Step 4: Simplify right side
18,157,103.42x = 247,979,311,494,195.69 - Step 5: Solve for x
x = 247,979,311,494,195.69/18,157,103.42 - Step 6: Final answer
x = 13,657,426.84
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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.