Finding the Fourth Proportional to 19,431,998.80, 29,147,998.20 and 5,967,077.20
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Solution
The fourth proportional to 19,431,998.80, 29,147,998.20 and 5,967,077.20 is: 8,950,615.80
Step by Step Solution
- Step 1: Write the proportion equation
19,431,998.80 : 29,147,998.20 = 5,967,077.20 : x - Step 2: Convert to fraction form
19,431,998.80/29,147,998.20 = 5,967,077.20/x - Step 3: Cross multiply
19,431,998.80x = 29,147,998.20 × 5,967,077.20 - Step 4: Simplify right side
19,431,998.80x = 173,928,355,484,861.03 - Step 5: Solve for x
x = 173,928,355,484,861.03/19,431,998.80 - Step 6: Final answer
x = 8,950,615.80
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1.5x scale
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.