Finding the Fourth Proportional to 18,581,305.80, 27,871,958.70 and 18,581,305.80
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Solution
The fourth proportional to 18,581,305.80, 27,871,958.70 and 18,581,305.80 is: 27,871,958.70
Step by Step Solution
- Step 1: Write the proportion equation
18,581,305.80 : 27,871,958.70 = 18,581,305.80 : x - Step 2: Convert to fraction form
18,581,305.80/27,871,958.70 = 18,581,305.80/x - Step 3: Cross multiply
18,581,305.80x = 27,871,958.70 × 18,581,305.80 - Step 4: Simplify right side
18,581,305.80x = 517,897,387,849,670.44 - Step 5: Solve for x
x = 517,897,387,849,670.44/18,581,305.80 - Step 6: Final answer
x = 27,871,958.70
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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.