Finding the Fourth Proportional to 18,551,727.02, 27,827,738.49 and 7,619,100.05
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Solution
The fourth proportional to 18,551,727.02, 27,827,738.49 and 7,619,100.05 is: 11,428,710.84
Step by Step Solution
- Step 1: Write the proportion equation
18,551,727.02 : 27,827,738.49 = 7,619,100.05 : x - Step 2: Convert to fraction form
18,551,727.02/27,827,738.49 = 7,619,100.05/x - Step 3: Cross multiply
18,551,727.02x = 27,827,738.49 × 7,619,100.05 - Step 4: Simplify right side
18,551,727.02x = 212,022,323,720,545.91 - Step 5: Solve for x
x = 212,022,323,720,545.91/18,551,727.02 - Step 6: Final answer
x = 11,428,710.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.