Finding the Fourth Proportional to 99,463,266.80, 149,215,078.20 and 31,290,102.80
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Solution
The fourth proportional to 99,463,266.80, 149,215,078.20 and 31,290,102.80 is: 46,941,501.99
Step by Step Solution
- Step 1: Write the proportion equation
99,463,266.80 : 149,215,078.20 = 31,290,102.80 : x - Step 2: Convert to fraction form
99,463,266.80/149,215,078.20 = 31,290,102.80/x - Step 3: Cross multiply
99,463,266.80x = 149,215,078.20 × 31,290,102.80 - Step 4: Simplify right side
99,463,266.80x = 4,668,955,136,188,039 - Step 5: Solve for x
x = 4,668,955,136,188,039/99,463,266.80 - Step 6: Final answer
x = 46,941,501.99
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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.